{"asset": "psm-rmp-chemical-threshold-crossref", "asset_type": "cross-reference", "body": "Side-by-side comparison of threshold quantities for hazardous chemicals regulated under OSHA's Process Safety Management standard (29 CFR 1910.119 Appendix A) and EPA's Risk Management Program (40 CFR 68.130). Each record is one chemical with the threshold quantity in pounds that triggers obligations under each program. Many chemicals appear on both lists with different thresholds \u2014 chlorine is 1,500 lbs under PSM and 2,500 lbs under RMP; ethylene oxide is 5,000 lbs under PSM and 10,000 lbs under RMP. EPA has ~27 chemicals not on the OSHA list and OSHA has ~79 not on EPA's. Answers 'is [chemical] covered by PSM, RMP, or both?', 'what is the threshold quantity for chlorine under each program?', and 'which chemicals have different thresholds under PSM and RMP?'\n", "description": "Side-by-side comparison of threshold quantities for hazardous chemicals regulated under OSHA's Process Safety Management standard (29 CFR 1910.119 Appendix A) and EPA's Risk Management Program (40 CFR 68.130). Each record is one chemical with the threshold quantity in pounds that triggers obligations under each program. Many chemicals appear on both lists with different thresholds \u2014 chlorine is 1,500 lbs under PSM and 2,500 lbs under RMP; ethylene oxide is 5,000 lbs under PSM and 10,000 lbs under RMP. EPA has ~27 chemicals not on the OSHA list and OSHA has ~79 not on EPA's. Answers 'is [chemical] covered by PSM, RMP, or both?', 'what is the threshold quantity for chlorine under each program?', and 'which chemicals have different thresholds under PSM and RMP?'", "file": "index.md", "generated": true, "harvested": "2026-08-15", "key_field": "substance", "licence": "US federal regulation \u2014 public domain", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130", "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "title": "OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "dataset", "verified": false}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]\n\n**CAS No.:** 57-14-7\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> 1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-] | 57-14-7 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "57-14-7", "file": "1-1-dimethylhydrazine-hydrazine-1-1-dimethyl.md", "generated": true, "harvested": "2026-08-15", "id": "1-1-dimethylhydrazine-hydrazine-1-1-dimethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-] | 57-14-7 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]", "title": "1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1,3-Butadiene\n\n**CAS No.:** 106-99-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 1,3-Butadiene | 106-99-0 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "106-99-0", "file": "1-3-butadiene.md", "generated": true, "harvested": "2026-08-15", "id": "1-3-butadiene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "1,3-Butadiene | 106-99-0 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1,3-Butadiene", "title": "1,3-Butadiene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1,3-Pentadinene\n\n**CAS No.:** 504-60-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 1,3-Pentadinene | 504-60-9 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "504-60-9", "file": "1-3-pentadinene.md", "generated": true, "harvested": "2026-08-15", "id": "1-3-pentadinene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "1,3-Pentadinene | 504-60-9 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1,3-Pentadinene", "title": "1,3-Pentadinene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1-Butene\n\n**CAS No.:** 106-98-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 1-Butene | 106-98-9 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "106-98-9", "file": "1-butene.md", "generated": true, "harvested": "2026-08-15", "id": "1-butene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "1-Butene | 106-98-9 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1-Butene", "title": "1-Butene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1-Chloro-2,4-Dinitrobenzene\n\n**CAS No.:** 97-00-7\n\n**OSHA PSM TQ (lbs):** 5000\n\n> 1-Chloro-2,4-Dinitrobenzene | 97-00-7 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "97-00-7", "file": "1-chloro-2-4-dinitrobenzene.md", "generated": true, "harvested": "2026-08-15", "id": "1-chloro-2-4-dinitrobenzene", "psm_tq_lbs": "5000", "source_quote": "1-Chloro-2,4-Dinitrobenzene | 97-00-7 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "1-Chloro-2,4-Dinitrobenzene", "title": "1-Chloro-2,4-Dinitrobenzene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1-Chloropropylene [1-Propene, 1-chloro-]\n\n**CAS No.:** 590-21-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 1-Chloropropylene [1-Propene, 1-chloro-] | 590-21-6 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "590-21-6", "file": "1-chloropropylene-1-propene-1-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "1-chloropropylene-1-propene-1-chloro", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "1-Chloropropylene [1-Propene, 1-chloro-] | 590-21-6 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1-Chloropropylene [1-Propene, 1-chloro-]", "title": "1-Chloropropylene [1-Propene, 1-chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 1-Pentene\n\n**CAS No.:** 109-67-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 1-Pentene | 109-67-1 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "109-67-1", "file": "1-pentene.md", "generated": true, "harvested": "2026-08-15", "id": "1-pentene", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "1-Pentene | 109-67-1 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "1-Pentene", "title": "1-Pentene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2,2-Dimethylpropane [Propane, 2,2-dimethyl-]\n\n**CAS No.:** 463-82-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 2,2-Dimethylpropane [Propane, 2,2-dimethyl-] | 463-82-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "463-82-1", "file": "2-2-dimethylpropane-propane-2-2-dimethyl.md", "generated": true, "harvested": "2026-08-15", "id": "2-2-dimethylpropane-propane-2-2-dimethyl", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2,2-Dimethylpropane [Propane, 2,2-dimethyl-] | 463-82-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2,2-Dimethylpropane [Propane, 2,2-dimethyl-]", "title": "2,2-Dimethylpropane [Propane, 2,2-dimethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2,4-Dinitroaniline\n\n**CAS No.:** 97-02-9\n\n**OSHA PSM TQ (lbs):** 5000\n\n> 2,4-Dinitroaniline | 97-02-9 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "97-02-9", "file": "2-4-dinitroaniline.md", "generated": true, "harvested": "2026-08-15", "id": "2-4-dinitroaniline", "psm_tq_lbs": "5000", "source_quote": "2,4-Dinitroaniline | 97-02-9 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "2,4-Dinitroaniline", "title": "2,4-Dinitroaniline \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Butene-cis\n\n**CAS No.:** 590-18-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 2-Butene-cis | 590-18-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "590-18-1", "file": "2-butene-cis.md", "generated": true, "harvested": "2026-08-15", "id": "2-butene-cis", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Butene-cis | 590-18-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Butene-cis", "title": "2-Butene-cis \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Butene-trans [2-Butene, (E)]\n\n**CAS No.:** 624-64-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 2-Butene-trans [2-Butene, (E)] | 624-64-6 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "624-64-6", "file": "2-butene-trans-2-butene-e.md", "generated": true, "harvested": "2026-08-15", "id": "2-butene-trans-2-butene-e", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Butene-trans [2-Butene, (E)] | 624-64-6 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Butene-trans [2-Butene, (E)]", "title": "2-Butene-trans [2-Butene, (E)] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Butene\n\n**CAS No.:** 107-01-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 2-Butene | 107-01-7 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-01-7", "file": "2-butene.md", "generated": true, "harvested": "2026-08-15", "id": "2-butene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Butene | 107-01-7 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Butene", "title": "2-Butene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Chloropropylene [1-Propene, 2-chloro-]\n\n**CAS No.:** 557-98-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 2-Chloropropylene [1-Propene, 2-chloro-] | 557-98-2 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "557-98-2", "file": "2-chloropropylene-1-propene-2-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "2-chloropropylene-1-propene-2-chloro", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Chloropropylene [1-Propene, 2-chloro-] | 557-98-2 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Chloropropylene [1-Propene, 2-chloro-]", "title": "2-Chloropropylene [1-Propene, 2-chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Methyl-1-butene\n\n**CAS No.:** 563-46-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 2-Methyl-1-butene | 563-46-2 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "563-46-2", "file": "2-methyl-1-butene.md", "generated": true, "harvested": "2026-08-15", "id": "2-methyl-1-butene", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Methyl-1-butene | 563-46-2 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Methyl-1-butene", "title": "2-Methyl-1-butene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Methylpropene [1-Propene, 2-methyl-]\n\n**CAS No.:** 115-11-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 2-Methylpropene [1-Propene, 2-methyl-] | 115-11-7 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "115-11-7", "file": "2-methylpropene-1-propene-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "2-methylpropene-1-propene-2-methyl", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Methylpropene [1-Propene, 2-methyl-] | 115-11-7 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Methylpropene [1-Propene, 2-methyl-]", "title": "2-Methylpropene [1-Propene, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Pentene, (E)-\n\n**CAS No.:** 646-04-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 2-Pentene, (E)- | 646-04-8 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "646-04-8", "file": "2-pentene-e.md", "generated": true, "harvested": "2026-08-15", "id": "2-pentene-e", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Pentene, (E)- | 646-04-8 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Pentene, (E)-", "title": "2-Pentene, (E)- \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 2-Pentene, (Z)-\n\n**CAS No.:** 627-20-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> 2-Pentene, (Z)- | 627-20-3 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "627-20-3", "file": "2-pentene-z.md", "generated": true, "harvested": "2026-08-15", "id": "2-pentene-z", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "2-Pentene, (Z)- | 627-20-3 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "2-Pentene, (Z)-", "title": "2-Pentene, (Z)- \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 3-Bromopropyne (also called Propargyl Bromide)\n\n**CAS No.:** 106-96-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> 3-Bromopropyne (also called Propargyl Bromide) | 106-96-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "106-96-7", "file": "3-bromopropyne-also-called-propargyl-bromide.md", "generated": true, "harvested": "2026-08-15", "id": "3-bromopropyne-also-called-propargyl-bromide", "psm_tq_lbs": "100", "source_quote": "3-Bromopropyne (also called Propargyl Bromide) | 106-96-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "3-Bromopropyne (also called Propargyl Bromide)", "title": "3-Bromopropyne (also called Propargyl Bromide) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** 3-Methyl-1-butene\n\n**CAS No.:** 563-45-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> 3-Methyl-1-butene | 563-45-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "563-45-1", "file": "3-methyl-1-butene.md", "generated": true, "harvested": "2026-08-15", "id": "3-methyl-1-butene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "3-Methyl-1-butene | 563-45-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "3-Methyl-1-butene", "title": "3-Methyl-1-butene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acetaldehyde\n\n**CAS No.:** 75-07-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Acetaldehyde | 75-07-0 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-07-0", "file": "acetaldehyde-2.md", "generated": true, "harvested": "2026-08-15", "id": "acetaldehyde-2", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Acetaldehyde | 75-07-0 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Acetaldehyde", "title": "Acetaldehyde \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acetaldehyde\n\n**CAS No.:** 75-07-0\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Acetaldehyde | 75-07-0 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-07-0", "file": "acetaldehyde.md", "generated": true, "harvested": "2026-08-15", "id": "acetaldehyde", "psm_tq_lbs": "2500", "source_quote": "Acetaldehyde | 75-07-0 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Acetaldehyde", "title": "Acetaldehyde \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acetylene [Ethyne]\n\n**CAS No.:** 74-86-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Acetylene [Ethyne] | 74-86-2 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-86-2", "file": "acetylene-ethyne.md", "generated": true, "harvested": "2026-08-15", "id": "acetylene-ethyne", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Acetylene [Ethyne] | 74-86-2 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Acetylene [Ethyne]", "title": "Acetylene [Ethyne] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acrolein [2-Propenal]\n\n**CAS No.:** 107-02-8\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Acrolein [2-Propenal] | 107-02-8 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-02-8", "file": "acrolein-2-propenal-2.md", "generated": true, "harvested": "2026-08-15", "id": "acrolein-2-propenal-2", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Acrolein [2-Propenal] | 107-02-8 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Acrolein [2-Propenal]", "title": "Acrolein [2-Propenal] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acrolein (2-Propenal)\n\n**CAS No.:** 107-02-8\n\n**OSHA PSM TQ (lbs):** 150\n\n> Acrolein (2-Propenal) | 107-02-8 | 150\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "107-02-8", "file": "acrolein-2-propenal.md", "generated": true, "harvested": "2026-08-15", "id": "acrolein-2-propenal", "psm_tq_lbs": "150", "source_quote": "Acrolein (2-Propenal) | 107-02-8 | 150", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Acrolein (2-Propenal)", "title": "Acrolein (2-Propenal) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acrylonitrile [2-Propenenitrile]\n\n**CAS No.:** 107-13-1\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Acrylonitrile [2-Propenenitrile] | 107-13-1 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-13-1", "file": "acrylonitrile-2-propenenitrile.md", "generated": true, "harvested": "2026-08-15", "id": "acrylonitrile-2-propenenitrile", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Acrylonitrile [2-Propenenitrile] | 107-13-1 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Acrylonitrile [2-Propenenitrile]", "title": "Acrylonitrile [2-Propenenitrile] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acrylyl chloride [2-Propenoyl chloride]\n\n**CAS No.:** 814-68-6\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Acrylyl chloride [2-Propenoyl chloride] | 814-68-6 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "814-68-6", "file": "acrylyl-chloride-2-propenoyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "acrylyl-chloride-2-propenoyl-chloride", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Acrylyl chloride [2-Propenoyl chloride] | 814-68-6 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Acrylyl chloride [2-Propenoyl chloride]", "title": "Acrylyl chloride [2-Propenoyl chloride] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Acrylyl Chloride\n\n**CAS No.:** 814-68-6\n\n**OSHA PSM TQ (lbs):** 250\n\n> Acrylyl Chloride | 814-68-6 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "814-68-6", "file": "acrylyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "acrylyl-chloride", "psm_tq_lbs": "250", "source_quote": "Acrylyl Chloride | 814-68-6 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Acrylyl Chloride", "title": "Acrylyl Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Alkylaluminums\n\n**CAS No.:** Varies\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Alkylaluminums | Varies | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "Varies", "file": "alkylaluminums.md", "generated": true, "harvested": "2026-08-15", "id": "alkylaluminums", "psm_tq_lbs": "5000", "source_quote": "Alkylaluminums | Varies | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Alkylaluminums", "title": "Alkylaluminums \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Allyl alcohol [2-Propen-l-ol]\n\n**CAS No.:** 107-18-6\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Allyl alcohol [2-Propen-l-ol] | 107-18-6 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-18-6", "file": "allyl-alcohol-2-propen-l-ol.md", "generated": true, "harvested": "2026-08-15", "id": "allyl-alcohol-2-propen-l-ol", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Allyl alcohol [2-Propen-l-ol] | 107-18-6 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Allyl alcohol [2-Propen-l-ol]", "title": "Allyl alcohol [2-Propen-l-ol] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Allyl Chloride\n\n**CAS No.:** 107-05-1\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Allyl Chloride | 107-05-1 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "107-05-1", "file": "allyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "allyl-chloride", "psm_tq_lbs": "1000", "source_quote": "Allyl Chloride | 107-05-1 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Allyl Chloride", "title": "Allyl Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Allylamine [2-Propen-l-amine]\n\n**CAS No.:** 107-11-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Allylamine [2-Propen-l-amine] | 107-11-9 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-11-9", "file": "allylamine-2-propen-l-amine.md", "generated": true, "harvested": "2026-08-15", "id": "allylamine-2-propen-l-amine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Allylamine [2-Propen-l-amine] | 107-11-9 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Allylamine [2-Propen-l-amine]", "title": "Allylamine [2-Propen-l-amine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Allylamine\n\n**CAS No.:** 107-11-9\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Allylamine | 107-11-9 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "107-11-9", "file": "allylamine.md", "generated": true, "harvested": "2026-08-15", "id": "allylamine", "psm_tq_lbs": "1000", "source_quote": "Allylamine | 107-11-9 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Allylamine", "title": "Allylamine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonia (anhydrous)\n\n**CAS No.:** 7664-41-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Ammonia (anhydrous) | 7664-41-7 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7664-41-7", "file": "ammonia-anhydrous-2.md", "generated": true, "harvested": "2026-08-15", "id": "ammonia-anhydrous-2", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Ammonia (anhydrous) | 7664-41-7 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ammonia (anhydrous)", "title": "Ammonia (anhydrous) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonia, Anhydrous\n\n**CAS No.:** 7664-41-7\n\n**OSHA PSM TQ (lbs):** 10000\n\n> Ammonia, Anhydrous | 7664-41-7 | 10000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7664-41-7", "file": "ammonia-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "ammonia-anhydrous", "psm_tq_lbs": "10000", "source_quote": "Ammonia, Anhydrous | 7664-41-7 | 10000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ammonia, Anhydrous", "title": "Ammonia, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonia (conc 20% or greater)\n\n**CAS No.:** 7664-41-7\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Ammonia (conc 20% or greater) | 7664-41-7 | 20,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7664-41-7", "file": "ammonia-conc-20-or-greater.md", "generated": true, "harvested": "2026-08-15", "id": "ammonia-conc-20-or-greater", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Ammonia (conc 20% or greater) | 7664-41-7 | 20,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ammonia (conc 20% or greater)", "title": "Ammonia (conc 20% or greater) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonia solutions (>44% ammonia by weight)\n\n**CAS No.:** 7664-41-7\n\n**OSHA PSM TQ (lbs):** 15000\n\n> Ammonia solutions (>44% ammonia by weight) | 7664-41-7 | 15000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7664-41-7", "file": "ammonia-solutions-44-ammonia-by-weight.md", "generated": true, "harvested": "2026-08-15", "id": "ammonia-solutions-44-ammonia-by-weight", "psm_tq_lbs": "15000", "source_quote": "Ammonia solutions (>44% ammonia by weight) | 7664-41-7 | 15000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ammonia solutions (>44% ammonia by weight)", "title": "Ammonia solutions (>44% ammonia by weight) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonium Perchlorate\n\n**CAS No.:** 7790-98-9\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Ammonium Perchlorate | 7790-98-9 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7790-98-9", "file": "ammonium-perchlorate.md", "generated": true, "harvested": "2026-08-15", "id": "ammonium-perchlorate", "psm_tq_lbs": "7500", "source_quote": "Ammonium Perchlorate | 7790-98-9 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ammonium Perchlorate", "title": "Ammonium Perchlorate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ammonium Permanganate\n\n**CAS No.:** 7787-36-2\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Ammonium Permanganate | 7787-36-2 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7787-36-2", "file": "ammonium-permanganate.md", "generated": true, "harvested": "2026-08-15", "id": "ammonium-permanganate", "psm_tq_lbs": "7500", "source_quote": "Ammonium Permanganate | 7787-36-2 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ammonium Permanganate", "title": "Ammonium Permanganate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Arsenous trichloride\n\n**CAS No.:** 7784-34-1\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Arsenous trichloride | 7784-34-1 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7784-34-1", "file": "arsenous-trichloride.md", "generated": true, "harvested": "2026-08-15", "id": "arsenous-trichloride", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Arsenous trichloride | 7784-34-1 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Arsenous trichloride", "title": "Arsenous trichloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Arsine (also called Arsenic Hydride)\n\n**CAS No.:** 7784-42-1\n\n**OSHA PSM TQ (lbs):** 100\n\n> Arsine (also called Arsenic Hydride) | 7784-42-1 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7784-42-1", "file": "arsine-also-called-arsenic-hydride.md", "generated": true, "harvested": "2026-08-15", "id": "arsine-also-called-arsenic-hydride", "psm_tq_lbs": "100", "source_quote": "Arsine (also called Arsenic Hydride) | 7784-42-1 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Arsine (also called Arsenic Hydride)", "title": "Arsine (also called Arsenic Hydride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Arsine\n\n**CAS No.:** 7784-42-1\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Arsine | 7784-42-1 | 1,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7784-42-1", "file": "arsine.md", "generated": true, "harvested": "2026-08-15", "id": "arsine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Arsine | 7784-42-1 | 1,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Arsine", "title": "Arsine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bis(Chloromethyl) Ether\n\n**CAS No.:** 542-88-1\n\n**OSHA PSM TQ (lbs):** 100\n\n> Bis(Chloromethyl) Ether | 542-88-1 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "542-88-1", "file": "bis-chloromethyl-ether.md", "generated": true, "harvested": "2026-08-15", "id": "bis-chloromethyl-ether", "psm_tq_lbs": "100", "source_quote": "Bis(Chloromethyl) Ether | 542-88-1 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Bis(Chloromethyl) Ether", "title": "Bis(Chloromethyl) Ether \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Boron trichloride [Borane, trichloro-]\n\n**CAS No.:** 10294-34-5\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Boron trichloride [Borane, trichloro-] | 10294-34-5 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "10294-34-5", "file": "boron-trichloride-borane-trichloro.md", "generated": true, "harvested": "2026-08-15", "id": "boron-trichloride-borane-trichloro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Boron trichloride [Borane, trichloro-] | 10294-34-5 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Boron trichloride [Borane, trichloro-]", "title": "Boron trichloride [Borane, trichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Boron Trichloride\n\n**CAS No.:** 10294-34-5\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Boron Trichloride | 10294-34-5 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10294-34-5", "file": "boron-trichloride.md", "generated": true, "harvested": "2026-08-15", "id": "boron-trichloride", "psm_tq_lbs": "2500", "source_quote": "Boron Trichloride | 10294-34-5 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Boron Trichloride", "title": "Boron Trichloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Boron trifluoride [Borane, trifluoro-]\n\n**CAS No.:** 7637-07-2\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Boron trifluoride [Borane, trifluoro-] | 7637-07-2 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7637-07-2", "file": "boron-trifluoride-borane-trifluoro.md", "generated": true, "harvested": "2026-08-15", "id": "boron-trifluoride-borane-trifluoro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Boron trifluoride [Borane, trifluoro-] | 7637-07-2 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Boron trifluoride [Borane, trifluoro-]", "title": "Boron trifluoride [Borane, trifluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis [metane]]-, T-4-\n\n**CAS No.:** 353-42-4\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis [metane]]-, T-4- | 353-42-4 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "353-42-4", "file": "boron-trifluoride-compound-with-methyl-ether-1-1-boron-trifluoro-oxybis-metane-t.md", "generated": true, "harvested": "2026-08-15", "id": "boron-trifluoride-compound-with-methyl-ether-1-1-boron-trifluoro-oxybis-metane-t", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis [metane]]-, T-4- | 353-42-4 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis [metane]]-, T-4-", "title": "Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro [oxybis [metane]]-, T-4- \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Boron Trifluoride\n\n**CAS No.:** 7637-07-2\n\n**OSHA PSM TQ (lbs):** 250\n\n> Boron Trifluoride | 7637-07-2 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7637-07-2", "file": "boron-trifluoride.md", "generated": true, "harvested": "2026-08-15", "id": "boron-trifluoride", "psm_tq_lbs": "250", "source_quote": "Boron Trifluoride | 7637-07-2 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Boron Trifluoride", "title": "Boron Trifluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromine\n\n**CAS No.:** 7726-95-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Bromine | 7726-95-6 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7726-95-6", "file": "bromine-2.md", "generated": true, "harvested": "2026-08-15", "id": "bromine-2", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Bromine | 7726-95-6 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Bromine", "title": "Bromine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromine Chloride\n\n**CAS No.:** 13863-41-7\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Bromine Chloride | 13863-41-7 | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "13863-41-7", "file": "bromine-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "bromine-chloride", "psm_tq_lbs": "1500", "source_quote": "Bromine Chloride | 13863-41-7 | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Bromine Chloride", "title": "Bromine Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromine Pentafluoride\n\n**CAS No.:** 7789-30-2\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Bromine Pentafluoride | 7789-30-2 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7789-30-2", "file": "bromine-pentafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "bromine-pentafluoride", "psm_tq_lbs": "2500", "source_quote": "Bromine Pentafluoride | 7789-30-2 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Bromine Pentafluoride", "title": "Bromine Pentafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromine Trifluoride\n\n**CAS No.:** 7787-71-5\n\n**OSHA PSM TQ (lbs):** 15000\n\n> Bromine Trifluoride | 7787-71-5 | 15000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7787-71-5", "file": "bromine-trifluoride.md", "generated": true, "harvested": "2026-08-15", "id": "bromine-trifluoride", "psm_tq_lbs": "15000", "source_quote": "Bromine Trifluoride | 7787-71-5 | 15000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Bromine Trifluoride", "title": "Bromine Trifluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromine\n\n**CAS No.:** 7726-95-6\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Bromine | 7726-95-6 | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7726-95-6", "file": "bromine.md", "generated": true, "harvested": "2026-08-15", "id": "bromine", "psm_tq_lbs": "1500", "source_quote": "Bromine | 7726-95-6 | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Bromine", "title": "Bromine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Bromotrifluorethylene [Ethene, bromotrifluoro-]\n\n**CAS No.:** 598-73-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Bromotrifluorethylene [Ethene, bromotrifluoro-] | 598-73-2 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "598-73-2", "file": "bromotrifluorethylene-ethene-bromotrifluoro.md", "generated": true, "harvested": "2026-08-15", "id": "bromotrifluorethylene-ethene-bromotrifluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Bromotrifluorethylene [Ethene, bromotrifluoro-] | 598-73-2 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Bromotrifluorethylene [Ethene, bromotrifluoro-]", "title": "Bromotrifluorethylene [Ethene, bromotrifluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Butane\n\n**CAS No.:** 106-97-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Butane | 106-97-8 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "106-97-8", "file": "butane.md", "generated": true, "harvested": "2026-08-15", "id": "butane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Butane | 106-97-8 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Butane", "title": "Butane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Butene\n\n**CAS No.:** 25167-67-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Butene | 25167-67-3 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "25167-67-3", "file": "butene.md", "generated": true, "harvested": "2026-08-15", "id": "butene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Butene | 25167-67-3 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Butene", "title": "Butene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Butyl Hydroperoxide (Tertiary)\n\n**CAS No.:** 75-91-2\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Butyl Hydroperoxide (Tertiary) | 75-91-2 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-91-2", "file": "butyl-hydroperoxide-tertiary.md", "generated": true, "harvested": "2026-08-15", "id": "butyl-hydroperoxide-tertiary", "psm_tq_lbs": "5000", "source_quote": "Butyl Hydroperoxide (Tertiary) | 75-91-2 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Butyl Hydroperoxide (Tertiary)", "title": "Butyl Hydroperoxide (Tertiary) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Butyl Perbenzoate (Tertiary)\n\n**CAS No.:** 614-45-9\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Butyl Perbenzoate (Tertiary) | 614-45-9 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "614-45-9", "file": "butyl-perbenzoate-tertiary.md", "generated": true, "harvested": "2026-08-15", "id": "butyl-perbenzoate-tertiary", "psm_tq_lbs": "7500", "source_quote": "Butyl Perbenzoate (Tertiary) | 614-45-9 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Butyl Perbenzoate (Tertiary)", "title": "Butyl Perbenzoate (Tertiary) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Carbon disulfide\n\n**CAS No.:** 75-15-0\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Carbon disulfide | 75-15-0 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-15-0", "file": "carbon-disulfide.md", "generated": true, "harvested": "2026-08-15", "id": "carbon-disulfide", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Carbon disulfide | 75-15-0 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Carbon disulfide", "title": "Carbon disulfide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Carbon oxysulfide [Carbon oxide sulfide (COS)]\n\n**CAS No.:** 463-58-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Carbon oxysulfide [Carbon oxide sulfide (COS)] | 463-58-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "463-58-1", "file": "carbon-oxysulfide-carbon-oxide-sulfide-cos.md", "generated": true, "harvested": "2026-08-15", "id": "carbon-oxysulfide-carbon-oxide-sulfide-cos", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Carbon oxysulfide [Carbon oxide sulfide (COS)] | 463-58-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Carbon oxysulfide [Carbon oxide sulfide (COS)]", "title": "Carbon oxysulfide [Carbon oxide sulfide (COS)] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Carbonyl Chloride (see Phosgene)\n\n**CAS No.:** 75-44-5\n\n**OSHA PSM TQ (lbs):** 100\n\n> Carbonyl Chloride (see Phosgene) | 75-44-5 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-44-5", "file": "carbonyl-chloride-see-phosgene.md", "generated": true, "harvested": "2026-08-15", "id": "carbonyl-chloride-see-phosgene", "psm_tq_lbs": "100", "source_quote": "Carbonyl Chloride (see Phosgene) | 75-44-5 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Carbonyl Chloride (see Phosgene)", "title": "Carbonyl Chloride (see Phosgene) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Carbonyl Fluoride\n\n**CAS No.:** 353-50-4\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Carbonyl Fluoride | 353-50-4 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "353-50-4", "file": "carbonyl-fluoride.md", "generated": true, "harvested": "2026-08-15", "id": "carbonyl-fluoride", "psm_tq_lbs": "2500", "source_quote": "Carbonyl Fluoride | 353-50-4 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Carbonyl Fluoride", "title": "Carbonyl Fluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cellulose Nitrate (concentration >12.6% nitrogen)\n\n**CAS No.:** 9004-70-0\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Cellulose Nitrate (concentration >12.6% nitrogen) | 9004-70-0 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "9004-70-0", "file": "cellulose-nitrate-concentration-12-6-nitrogen.md", "generated": true, "harvested": "2026-08-15", "id": "cellulose-nitrate-concentration-12-6-nitrogen", "psm_tq_lbs": "2500", "source_quote": "Cellulose Nitrate (concentration >12.6% nitrogen) | 9004-70-0 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Cellulose Nitrate (concentration >12.6% nitrogen)", "title": "Cellulose Nitrate (concentration >12.6% nitrogen) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine\n\n**CAS No.:** 7782-50-5\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Chlorine | 7782-50-5 | 2,500 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7782-50-5", "file": "chlorine-2.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-2", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Chlorine | 7782-50-5 | 2,500 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chlorine", "title": "Chlorine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine dioxide [Chlorine oxide (ClO2)]\n\n**CAS No.:** 10049-04-4\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** c\n\n> Chlorine dioxide [Chlorine oxide (ClO2)] | 10049-04-4 | 1,000 | c\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "10049-04-4", "file": "chlorine-dioxide-chlorine-oxide-clo2.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-dioxide-chlorine-oxide-clo2", "rmp_basis": "c", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Chlorine dioxide [Chlorine oxide (ClO2)] | 10049-04-4 | 1,000 | c", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chlorine dioxide [Chlorine oxide (ClO2)]", "title": "Chlorine dioxide [Chlorine oxide (ClO2)] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine Dioxide\n\n**CAS No.:** 10049-04-4\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Chlorine Dioxide | 10049-04-4 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10049-04-4", "file": "chlorine-dioxide.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-dioxide", "psm_tq_lbs": "1000", "source_quote": "Chlorine Dioxide | 10049-04-4 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chlorine Dioxide", "title": "Chlorine Dioxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine monoxide [Chlorine oxide]\n\n**CAS No.:** 7791-21-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Chlorine monoxide [Chlorine oxide] | 7791-21-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7791-21-1", "file": "chlorine-monoxide-chlorine-oxide.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-monoxide-chlorine-oxide", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Chlorine monoxide [Chlorine oxide] | 7791-21-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chlorine monoxide [Chlorine oxide]", "title": "Chlorine monoxide [Chlorine oxide] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine Pentrafluoride\n\n**CAS No.:** 13637-63-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Chlorine Pentrafluoride | 13637-63-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "13637-63-3", "file": "chlorine-pentrafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-pentrafluoride", "psm_tq_lbs": "1000", "source_quote": "Chlorine Pentrafluoride | 13637-63-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chlorine Pentrafluoride", "title": "Chlorine Pentrafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine Trifluoride\n\n**CAS No.:** 7790-91-2\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Chlorine Trifluoride | 7790-91-2 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7790-91-2", "file": "chlorine-trifluoride.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine-trifluoride", "psm_tq_lbs": "1000", "source_quote": "Chlorine Trifluoride | 7790-91-2 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chlorine Trifluoride", "title": "Chlorine Trifluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorine\n\n**CAS No.:** 7782-50-5\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Chlorine | 7782-50-5 | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7782-50-5", "file": "chlorine.md", "generated": true, "harvested": "2026-08-15", "id": "chlorine", "psm_tq_lbs": "1500", "source_quote": "Chlorine | 7782-50-5 | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chlorine", "title": "Chlorine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chlorodiethylaluminum (also called Diethylaluminum Chloride)\n\n**CAS No.:** 96-10-6\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Chlorodiethylaluminum (also called Diethylaluminum Chloride) | 96-10-6 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "96-10-6", "file": "chlorodiethylaluminum-also-called-diethylaluminum-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "chlorodiethylaluminum-also-called-diethylaluminum-chloride", "psm_tq_lbs": "5000", "source_quote": "Chlorodiethylaluminum (also called Diethylaluminum Chloride) | 96-10-6 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chlorodiethylaluminum (also called Diethylaluminum Chloride)", "title": "Chlorodiethylaluminum (also called Diethylaluminum Chloride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloroform [Methane, trichloro-]\n\n**CAS No.:** 67-66-3\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Chloroform [Methane, trichloro-] | 67-66-3 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "67-66-3", "file": "chloroform-methane-trichloro.md", "generated": true, "harvested": "2026-08-15", "id": "chloroform-methane-trichloro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Chloroform [Methane, trichloro-] | 67-66-3 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chloroform [Methane, trichloro-]", "title": "Chloroform [Methane, trichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloromethyl ether [Methane, oxybis[chloro-]\n\n**CAS No.:** 542-88-1\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Chloromethyl ether [Methane, oxybis[chloro-] | 542-88-1 | 1,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "542-88-1", "file": "chloromethyl-ether-methane-oxybis-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "chloromethyl-ether-methane-oxybis-chloro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Chloromethyl ether [Methane, oxybis[chloro-] | 542-88-1 | 1,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chloromethyl ether [Methane, oxybis[chloro-]", "title": "Chloromethyl ether [Methane, oxybis[chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloromethyl methyl ether [Methane, chloromethoxy-]\n\n**CAS No.:** 107-30-2\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Chloromethyl methyl ether [Methane, chloromethoxy-] | 107-30-2 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-30-2", "file": "chloromethyl-methyl-ether-methane-chloromethoxy.md", "generated": true, "harvested": "2026-08-15", "id": "chloromethyl-methyl-ether-methane-chloromethoxy", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Chloromethyl methyl ether [Methane, chloromethoxy-] | 107-30-2 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Chloromethyl methyl ether [Methane, chloromethoxy-]", "title": "Chloromethyl methyl ether [Methane, chloromethoxy-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloromethyl Methyl Ether\n\n**CAS No.:** 107-30-2\n\n**OSHA PSM TQ (lbs):** 500\n\n> Chloromethyl Methyl Ether | 107-30-2 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "107-30-2", "file": "chloromethyl-methyl-ether.md", "generated": true, "harvested": "2026-08-15", "id": "chloromethyl-methyl-ether", "psm_tq_lbs": "500", "source_quote": "Chloromethyl Methyl Ether | 107-30-2 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chloromethyl Methyl Ether", "title": "Chloromethyl Methyl Ether \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloropicrin and Methyl Bromide mixture\n\n**CAS No.:** None\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Chloropicrin and Methyl Bromide mixture | None | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "None", "file": "chloropicrin-and-methyl-bromide-mixture.md", "generated": true, "harvested": "2026-08-15", "id": "chloropicrin-and-methyl-bromide-mixture", "psm_tq_lbs": "1500", "source_quote": "Chloropicrin and Methyl Bromide mixture | None | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chloropicrin and Methyl Bromide mixture", "title": "Chloropicrin and Methyl Bromide mixture \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloropicrin and Methyl Chloride mixture\n\n**CAS No.:** None\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Chloropicrin and Methyl Chloride mixture | None | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "None", "file": "chloropicrin-and-methyl-chloride-mixture.md", "generated": true, "harvested": "2026-08-15", "id": "chloropicrin-and-methyl-chloride-mixture", "psm_tq_lbs": "1500", "source_quote": "Chloropicrin and Methyl Chloride mixture | None | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chloropicrin and Methyl Chloride mixture", "title": "Chloropicrin and Methyl Chloride mixture \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Chloropicrin\n\n**CAS No.:** 76-06-2\n\n**OSHA PSM TQ (lbs):** 500\n\n> Chloropicrin | 76-06-2 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "76-06-2", "file": "chloropicrin.md", "generated": true, "harvested": "2026-08-15", "id": "chloropicrin", "psm_tq_lbs": "500", "source_quote": "Chloropicrin | 76-06-2 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Chloropicrin", "title": "Chloropicrin \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Crotonaldehyde [2-Butenal]\n\n**CAS No.:** 4170-30-3\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Crotonaldehyde [2-Butenal] | 4170-30-3 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "4170-30-3", "file": "crotonaldehyde-2-butenal.md", "generated": true, "harvested": "2026-08-15", "id": "crotonaldehyde-2-butenal", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Crotonaldehyde [2-Butenal] | 4170-30-3 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Crotonaldehyde [2-Butenal]", "title": "Crotonaldehyde [2-Butenal] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Crotonaldehyde, (E)- [2-Butenal, (E)-]\n\n**CAS No.:** 123-73-9\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Crotonaldehyde, (E)- [2-Butenal, (E)-] | 123-73-9 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "123-73-9", "file": "crotonaldehyde-e-2-butenal-e.md", "generated": true, "harvested": "2026-08-15", "id": "crotonaldehyde-e-2-butenal-e", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Crotonaldehyde, (E)- [2-Butenal, (E)-] | 123-73-9 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Crotonaldehyde, (E)- [2-Butenal, (E)-]", "title": "Crotonaldehyde, (E)- [2-Butenal, (E)-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cumene Hydroperoxide\n\n**CAS No.:** 80-15-9\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Cumene Hydroperoxide | 80-15-9 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "80-15-9", "file": "cumene-hydroperoxide.md", "generated": true, "harvested": "2026-08-15", "id": "cumene-hydroperoxide", "psm_tq_lbs": "5000", "source_quote": "Cumene Hydroperoxide | 80-15-9 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Cumene Hydroperoxide", "title": "Cumene Hydroperoxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyanogen chloride\n\n**CAS No.:** 506-77-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** c\n\n> Cyanogen chloride | 506-77-4 | 10,000 | c\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "506-77-4", "file": "cyanogen-chloride-2.md", "generated": true, "harvested": "2026-08-15", "id": "cyanogen-chloride-2", "rmp_basis": "c", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Cyanogen chloride | 506-77-4 | 10,000 | c", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Cyanogen chloride", "title": "Cyanogen chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyanogen Chloride\n\n**CAS No.:** 506-77-4\n\n**OSHA PSM TQ (lbs):** 500\n\n> Cyanogen Chloride | 506-77-4 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "506-77-4", "file": "cyanogen-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "cyanogen-chloride", "psm_tq_lbs": "500", "source_quote": "Cyanogen Chloride | 506-77-4 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Cyanogen Chloride", "title": "Cyanogen Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyanogen [Ethanedinitrile]\n\n**CAS No.:** 460-19-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Cyanogen [Ethanedinitrile] | 460-19-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "460-19-5", "file": "cyanogen-ethanedinitrile.md", "generated": true, "harvested": "2026-08-15", "id": "cyanogen-ethanedinitrile", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Cyanogen [Ethanedinitrile] | 460-19-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Cyanogen [Ethanedinitrile]", "title": "Cyanogen [Ethanedinitrile] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyanogen\n\n**CAS No.:** 460-19-5\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Cyanogen | 460-19-5 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "460-19-5", "file": "cyanogen.md", "generated": true, "harvested": "2026-08-15", "id": "cyanogen", "psm_tq_lbs": "2500", "source_quote": "Cyanogen | 460-19-5 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Cyanogen", "title": "Cyanogen \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyanuric Fluoride\n\n**CAS No.:** 675-14-9\n\n**OSHA PSM TQ (lbs):** 100\n\n> Cyanuric Fluoride | 675-14-9 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "675-14-9", "file": "cyanuric-fluoride.md", "generated": true, "harvested": "2026-08-15", "id": "cyanuric-fluoride", "psm_tq_lbs": "100", "source_quote": "Cyanuric Fluoride | 675-14-9 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Cyanuric Fluoride", "title": "Cyanuric Fluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyclohexylamine [Cyclohexanamine]\n\n**CAS No.:** 108-91-8\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Cyclohexylamine [Cyclohexanamine] | 108-91-8 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "108-91-8", "file": "cyclohexylamine-cyclohexanamine.md", "generated": true, "harvested": "2026-08-15", "id": "cyclohexylamine-cyclohexanamine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Cyclohexylamine [Cyclohexanamine] | 108-91-8 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Cyclohexylamine [Cyclohexanamine]", "title": "Cyclohexylamine [Cyclohexanamine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Cyclopropane\n\n**CAS No.:** 75-19-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Cyclopropane | 75-19-4 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-19-4", "file": "cyclopropane.md", "generated": true, "harvested": "2026-08-15", "id": "cyclopropane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Cyclopropane | 75-19-4 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Cyclopropane", "title": "Cyclopropane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diacetyl Peroxide (Concentration >70%)\n\n**CAS No.:** 110-22-5\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Diacetyl Peroxide (Concentration >70%) | 110-22-5 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "110-22-5", "file": "diacetyl-peroxide-concentration-70.md", "generated": true, "harvested": "2026-08-15", "id": "diacetyl-peroxide-concentration-70", "psm_tq_lbs": "5000", "source_quote": "Diacetyl Peroxide (Concentration >70%) | 110-22-5 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Diacetyl Peroxide (Concentration >70%)", "title": "Diacetyl Peroxide (Concentration >70%) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diazomethane\n\n**CAS No.:** 334-88-3\n\n**OSHA PSM TQ (lbs):** 500\n\n> Diazomethane | 334-88-3 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "334-88-3", "file": "diazomethane.md", "generated": true, "harvested": "2026-08-15", "id": "diazomethane", "psm_tq_lbs": "500", "source_quote": "Diazomethane | 334-88-3 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Diazomethane", "title": "Diazomethane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dibenzoyl Peroxide\n\n**CAS No.:** 94-36-0\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Dibenzoyl Peroxide | 94-36-0 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "94-36-0", "file": "dibenzoyl-peroxide.md", "generated": true, "harvested": "2026-08-15", "id": "dibenzoyl-peroxide", "psm_tq_lbs": "7500", "source_quote": "Dibenzoyl Peroxide | 94-36-0 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dibenzoyl Peroxide", "title": "Dibenzoyl Peroxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diborane\n\n**CAS No.:** 19287-45-7\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Diborane | 19287-45-7 | 2,500 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "19287-45-7", "file": "diborane-2.md", "generated": true, "harvested": "2026-08-15", "id": "diborane-2", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Diborane | 19287-45-7 | 2,500 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Diborane", "title": "Diborane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diborane\n\n**CAS No.:** 19287-45-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> Diborane | 19287-45-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "19287-45-7", "file": "diborane.md", "generated": true, "harvested": "2026-08-15", "id": "diborane", "psm_tq_lbs": "100", "source_quote": "Diborane | 19287-45-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Diborane", "title": "Diborane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dibutyl Peroxide (Tertiary)\n\n**CAS No.:** 110-05-4\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Dibutyl Peroxide (Tertiary) | 110-05-4 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "110-05-4", "file": "dibutyl-peroxide-tertiary.md", "generated": true, "harvested": "2026-08-15", "id": "dibutyl-peroxide-tertiary", "psm_tq_lbs": "5000", "source_quote": "Dibutyl Peroxide (Tertiary) | 110-05-4 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dibutyl Peroxide (Tertiary)", "title": "Dibutyl Peroxide (Tertiary) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dichloro Acetylene\n\n**CAS No.:** 7572-29-4\n\n**OSHA PSM TQ (lbs):** 250\n\n> Dichloro Acetylene | 7572-29-4 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7572-29-4", "file": "dichloro-acetylene.md", "generated": true, "harvested": "2026-08-15", "id": "dichloro-acetylene", "psm_tq_lbs": "250", "source_quote": "Dichloro Acetylene | 7572-29-4 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dichloro Acetylene", "title": "Dichloro Acetylene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dichlorosilane [Silane, dichloro-]\n\n**CAS No.:** 4109-96-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Dichlorosilane [Silane, dichloro-] | 4109-96-0 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "4109-96-0", "file": "dichlorosilane-silane-dichloro.md", "generated": true, "harvested": "2026-08-15", "id": "dichlorosilane-silane-dichloro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Dichlorosilane [Silane, dichloro-] | 4109-96-0 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Dichlorosilane [Silane, dichloro-]", "title": "Dichlorosilane [Silane, dichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dichlorosilane\n\n**CAS No.:** 4109-96-0\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Dichlorosilane | 4109-96-0 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "4109-96-0", "file": "dichlorosilane.md", "generated": true, "harvested": "2026-08-15", "id": "dichlorosilane", "psm_tq_lbs": "2500", "source_quote": "Dichlorosilane | 4109-96-0 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dichlorosilane", "title": "Dichlorosilane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diethylzinc\n\n**CAS No.:** 557-20-0\n\n**OSHA PSM TQ (lbs):** 10000\n\n> Diethylzinc | 557-20-0 | 10000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "557-20-0", "file": "diethylzinc.md", "generated": true, "harvested": "2026-08-15", "id": "diethylzinc", "psm_tq_lbs": "10000", "source_quote": "Diethylzinc | 557-20-0 | 10000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Diethylzinc", "title": "Diethylzinc \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Difluoroethane [Ethane, 1,1-difluoro-]\n\n**CAS No.:** 75-37-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Difluoroethane [Ethane, 1,1-difluoro-] | 75-37-6 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-37-6", "file": "difluoroethane-ethane-1-1-difluoro.md", "generated": true, "harvested": "2026-08-15", "id": "difluoroethane-ethane-1-1-difluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Difluoroethane [Ethane, 1,1-difluoro-] | 75-37-6 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Difluoroethane [Ethane, 1,1-difluoro-]", "title": "Difluoroethane [Ethane, 1,1-difluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Diisopropyl Peroxydicarbonate\n\n**CAS No.:** 105-64-6\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Diisopropyl Peroxydicarbonate | 105-64-6 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "105-64-6", "file": "diisopropyl-peroxydicarbonate.md", "generated": true, "harvested": "2026-08-15", "id": "diisopropyl-peroxydicarbonate", "psm_tq_lbs": "7500", "source_quote": "Diisopropyl Peroxydicarbonate | 105-64-6 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Diisopropyl Peroxydicarbonate", "title": "Diisopropyl Peroxydicarbonate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dilaluroyl Peroxide\n\n**CAS No.:** 105-74-8\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Dilaluroyl Peroxide | 105-74-8 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "105-74-8", "file": "dilaluroyl-peroxide.md", "generated": true, "harvested": "2026-08-15", "id": "dilaluroyl-peroxide", "psm_tq_lbs": "7500", "source_quote": "Dilaluroyl Peroxide | 105-74-8 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dilaluroyl Peroxide", "title": "Dilaluroyl Peroxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dimethylamine, Anhydrous\n\n**CAS No.:** 124-40-3\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Dimethylamine, Anhydrous | 124-40-3 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "124-40-3", "file": "dimethylamine-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "dimethylamine-anhydrous", "psm_tq_lbs": "2500", "source_quote": "Dimethylamine, Anhydrous | 124-40-3 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dimethylamine, Anhydrous", "title": "Dimethylamine, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dimethylamine [Methanamine, N-methyl-]\n\n**CAS No.:** 124-40-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Dimethylamine [Methanamine, N-methyl-] | 124-40-3 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "124-40-3", "file": "dimethylamine-methanamine-n-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "dimethylamine-methanamine-n-methyl", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Dimethylamine [Methanamine, N-methyl-] | 124-40-3 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Dimethylamine [Methanamine, N-methyl-]", "title": "Dimethylamine [Methanamine, N-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dimethyldichlorosilane [Silane, dichlorodimethyl-]\n\n**CAS No.:** 75-78-5\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Dimethyldichlorosilane [Silane, dichlorodimethyl-] | 75-78-5 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-78-5", "file": "dimethyldichlorosilane-silane-dichlorodimethyl.md", "generated": true, "harvested": "2026-08-15", "id": "dimethyldichlorosilane-silane-dichlorodimethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Dimethyldichlorosilane [Silane, dichlorodimethyl-] | 75-78-5 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Dimethyldichlorosilane [Silane, dichlorodimethyl-]", "title": "Dimethyldichlorosilane [Silane, dichlorodimethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dimethyldichlorosilane\n\n**CAS No.:** 75-78-5\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Dimethyldichlorosilane | 75-78-5 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-78-5", "file": "dimethyldichlorosilane.md", "generated": true, "harvested": "2026-08-15", "id": "dimethyldichlorosilane", "psm_tq_lbs": "1000", "source_quote": "Dimethyldichlorosilane | 75-78-5 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dimethyldichlorosilane", "title": "Dimethyldichlorosilane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Dimethylhydrazine, 1,1-\n\n**CAS No.:** 57-14-7\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Dimethylhydrazine, 1,1- | 57-14-7 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "57-14-7", "file": "dimethylhydrazine-1-1.md", "generated": true, "harvested": "2026-08-15", "id": "dimethylhydrazine-1-1", "psm_tq_lbs": "1000", "source_quote": "Dimethylhydrazine, 1,1- | 57-14-7 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Dimethylhydrazine, 1,1-", "title": "Dimethylhydrazine, 1,1- \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Epichlorohydrin [Oxirane, (chloromethyl)-]\n\n**CAS No.:** 106-89-8\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Epichlorohydrin [Oxirane, (chloromethyl)-] | 106-89-8 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "106-89-8", "file": "epichlorohydrin-oxirane-chloromethyl.md", "generated": true, "harvested": "2026-08-15", "id": "epichlorohydrin-oxirane-chloromethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Epichlorohydrin [Oxirane, (chloromethyl)-] | 106-89-8 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Epichlorohydrin [Oxirane, (chloromethyl)-]", "title": "Epichlorohydrin [Oxirane, (chloromethyl)-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethane\n\n**CAS No.:** 74-84-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethane | 74-84-0 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-84-0", "file": "ethane.md", "generated": true, "harvested": "2026-08-15", "id": "ethane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethane | 74-84-0 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethane", "title": "Ethane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl acetylene [1-Butyne]\n\n**CAS No.:** 107-00-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethyl acetylene [1-Butyne] | 107-00-6 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-00-6", "file": "ethyl-acetylene-1-butyne.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-acetylene-1-butyne", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethyl acetylene [1-Butyne] | 107-00-6 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyl acetylene [1-Butyne]", "title": "Ethyl acetylene [1-Butyne] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl chloride [Ethane, chloro-]\n\n**CAS No.:** 75-00-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethyl chloride [Ethane, chloro-] | 75-00-3 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-00-3", "file": "ethyl-chloride-ethane-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-chloride-ethane-chloro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethyl chloride [Ethane, chloro-] | 75-00-3 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyl chloride [Ethane, chloro-]", "title": "Ethyl chloride [Ethane, chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl ether [Ethane, 1,1\u2032-oxybis-]\n\n**CAS No.:** 60-29-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Ethyl ether [Ethane, 1,1\u2032-oxybis-] | 60-29-7 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "60-29-7", "file": "ethyl-ether-ethane-1-1-oxybis.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-ether-ethane-1-1-oxybis", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethyl ether [Ethane, 1,1\u2032-oxybis-] | 60-29-7 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyl ether [Ethane, 1,1\u2032-oxybis-]", "title": "Ethyl ether [Ethane, 1,1\u2032-oxybis-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl mercaptan [Ethanethiol]\n\n**CAS No.:** 75-08-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Ethyl mercaptan [Ethanethiol] | 75-08-1 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-08-1", "file": "ethyl-mercaptan-ethanethiol.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-mercaptan-ethanethiol", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethyl mercaptan [Ethanethiol] | 75-08-1 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyl mercaptan [Ethanethiol]", "title": "Ethyl mercaptan [Ethanethiol] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%)\n\n**CAS No.:** 1338-23-4\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%) | 1338-23-4 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "1338-23-4", "file": "ethyl-methyl-ketone-peroxide-also-methyl-ethyl-ketone-peroxide-concentration-60.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-methyl-ketone-peroxide-also-methyl-ethyl-ketone-peroxide-concentration-60", "psm_tq_lbs": "5000", "source_quote": "Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%) | 1338-23-4 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%)", "title": "Ethyl Methyl Ketone Peroxide (also Methyl Ethyl Ketone Peroxide; concentration >60%) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl nitrite [Nitrous acid, ethyl ester]\n\n**CAS No.:** 109-95-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethyl nitrite [Nitrous acid, ethyl ester] | 109-95-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "109-95-5", "file": "ethyl-nitrite-nitrous-acid-ethyl-ester.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-nitrite-nitrous-acid-ethyl-ester", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethyl nitrite [Nitrous acid, ethyl ester] | 109-95-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyl nitrite [Nitrous acid, ethyl ester]", "title": "Ethyl nitrite [Nitrous acid, ethyl ester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyl Nitrite\n\n**CAS No.:** 109-95-5\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Ethyl Nitrite | 109-95-5 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "109-95-5", "file": "ethyl-nitrite.md", "generated": true, "harvested": "2026-08-15", "id": "ethyl-nitrite", "psm_tq_lbs": "5000", "source_quote": "Ethyl Nitrite | 109-95-5 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethyl Nitrite", "title": "Ethyl Nitrite \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylamine [Ethanamine]\n\n**CAS No.:** 75-04-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethylamine [Ethanamine] | 75-04-7 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-04-7", "file": "ethylamine-ethanamine.md", "generated": true, "harvested": "2026-08-15", "id": "ethylamine-ethanamine", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethylamine [Ethanamine] | 75-04-7 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethylamine [Ethanamine]", "title": "Ethylamine [Ethanamine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylamine\n\n**CAS No.:** 75-04-7\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Ethylamine | 75-04-7 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-04-7", "file": "ethylamine.md", "generated": true, "harvested": "2026-08-15", "id": "ethylamine", "psm_tq_lbs": "7500", "source_quote": "Ethylamine | 75-04-7 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethylamine", "title": "Ethylamine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylene [Ethene]\n\n**CAS No.:** 74-85-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Ethylene [Ethene] | 74-85-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-85-1", "file": "ethylene-ethene.md", "generated": true, "harvested": "2026-08-15", "id": "ethylene-ethene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Ethylene [Ethene] | 74-85-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethylene [Ethene]", "title": "Ethylene [Ethene] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylene Fluorohydrin\n\n**CAS No.:** 371-62-0\n\n**OSHA PSM TQ (lbs):** 100\n\n> Ethylene Fluorohydrin | 371-62-0 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "371-62-0", "file": "ethylene-fluorohydrin.md", "generated": true, "harvested": "2026-08-15", "id": "ethylene-fluorohydrin", "psm_tq_lbs": "100", "source_quote": "Ethylene Fluorohydrin | 371-62-0 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethylene Fluorohydrin", "title": "Ethylene Fluorohydrin \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylene oxide [Oxirane]\n\n**CAS No.:** 75-21-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Ethylene oxide [Oxirane] | 75-21-8 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-21-8", "file": "ethylene-oxide-oxirane.md", "generated": true, "harvested": "2026-08-15", "id": "ethylene-oxide-oxirane", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Ethylene oxide [Oxirane] | 75-21-8 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethylene oxide [Oxirane]", "title": "Ethylene oxide [Oxirane] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylene Oxide\n\n**CAS No.:** 75-21-8\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Ethylene Oxide | 75-21-8 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-21-8", "file": "ethylene-oxide.md", "generated": true, "harvested": "2026-08-15", "id": "ethylene-oxide", "psm_tq_lbs": "5000", "source_quote": "Ethylene Oxide | 75-21-8 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethylene Oxide", "title": "Ethylene Oxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethylenediamine [1,2-Ethanediamine]\n\n**CAS No.:** 107-15-3\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Ethylenediamine [1,2-Ethanediamine] | 107-15-3 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-15-3", "file": "ethylenediamine-1-2-ethanediamine.md", "generated": true, "harvested": "2026-08-15", "id": "ethylenediamine-1-2-ethanediamine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Ethylenediamine [1,2-Ethanediamine] | 107-15-3 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethylenediamine [1,2-Ethanediamine]", "title": "Ethylenediamine [1,2-Ethanediamine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyleneimine [Aziridine]\n\n**CAS No.:** 151-56-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Ethyleneimine [Aziridine] | 151-56-4 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "151-56-4", "file": "ethyleneimine-aziridine.md", "generated": true, "harvested": "2026-08-15", "id": "ethyleneimine-aziridine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Ethyleneimine [Aziridine] | 151-56-4 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Ethyleneimine [Aziridine]", "title": "Ethyleneimine [Aziridine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ethyleneimine\n\n**CAS No.:** 151-56-4\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Ethyleneimine | 151-56-4 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "151-56-4", "file": "ethyleneimine.md", "generated": true, "harvested": "2026-08-15", "id": "ethyleneimine", "psm_tq_lbs": "1000", "source_quote": "Ethyleneimine | 151-56-4 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ethyleneimine", "title": "Ethyleneimine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Fluorine\n\n**CAS No.:** 7782-41-4\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Fluorine | 7782-41-4 | 1,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7782-41-4", "file": "fluorine-2.md", "generated": true, "harvested": "2026-08-15", "id": "fluorine-2", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Fluorine | 7782-41-4 | 1,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Fluorine", "title": "Fluorine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Fluorine\n\n**CAS No.:** 7782-41-4\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Fluorine | 7782-41-4 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7782-41-4", "file": "fluorine.md", "generated": true, "harvested": "2026-08-15", "id": "fluorine", "psm_tq_lbs": "1000", "source_quote": "Fluorine | 7782-41-4 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Fluorine", "title": "Fluorine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Formaldehyde (Formalin)\n\n**CAS No.:** 50-00-0\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Formaldehyde (Formalin) | 50-00-0 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "50-00-0", "file": "formaldehyde-formalin.md", "generated": true, "harvested": "2026-08-15", "id": "formaldehyde-formalin", "psm_tq_lbs": "1000", "source_quote": "Formaldehyde (Formalin) | 50-00-0 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Formaldehyde (Formalin)", "title": "Formaldehyde (Formalin) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Formaldehyde (solution)\n\n**CAS No.:** 50-00-0\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Formaldehyde (solution) | 50-00-0 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "50-00-0", "file": "formaldehyde-solution.md", "generated": true, "harvested": "2026-08-15", "id": "formaldehyde-solution", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Formaldehyde (solution) | 50-00-0 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Formaldehyde (solution)", "title": "Formaldehyde (solution) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Furan\n\n**CAS No.:** 110-00-9\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Furan | 110-00-9 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "110-00-9", "file": "furan-2.md", "generated": true, "harvested": "2026-08-15", "id": "furan-2", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Furan | 110-00-9 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Furan", "title": "Furan \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Furan\n\n**CAS No.:** 110-00-9\n\n**OSHA PSM TQ (lbs):** 500\n\n> Furan | 110-00-9 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "110-00-9", "file": "furan.md", "generated": true, "harvested": "2026-08-15", "id": "furan", "psm_tq_lbs": "500", "source_quote": "Furan | 110-00-9 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Furan", "title": "Furan \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hexafluoroacetone\n\n**CAS No.:** 684-16-2\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Hexafluoroacetone | 684-16-2 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "684-16-2", "file": "hexafluoroacetone.md", "generated": true, "harvested": "2026-08-15", "id": "hexafluoroacetone", "psm_tq_lbs": "5000", "source_quote": "Hexafluoroacetone | 684-16-2 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hexafluoroacetone", "title": "Hexafluoroacetone \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrazine\n\n**CAS No.:** 302-01-2\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Hydrazine | 302-01-2 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "302-01-2", "file": "hydrazine.md", "generated": true, "harvested": "2026-08-15", "id": "hydrazine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Hydrazine | 302-01-2 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrazine", "title": "Hydrazine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrochloric Acid, Anhydrous\n\n**CAS No.:** 7647-01-0\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Hydrochloric Acid, Anhydrous | 7647-01-0 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7647-01-0", "file": "hydrochloric-acid-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "hydrochloric-acid-anhydrous", "psm_tq_lbs": "5000", "source_quote": "Hydrochloric Acid, Anhydrous | 7647-01-0 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrochloric Acid, Anhydrous", "title": "Hydrochloric Acid, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrochloric acid (conc 37% or greater)\n\n**CAS No.:** 7647-01-0\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** d\n\n> Hydrochloric acid (conc 37% or greater) | 7647-01-0 | 15,000 | d\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7647-01-0", "file": "hydrochloric-acid-conc-37-or-greater.md", "generated": true, "harvested": "2026-08-15", "id": "hydrochloric-acid-conc-37-or-greater", "rmp_basis": "d", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Hydrochloric acid (conc 37% or greater) | 7647-01-0 | 15,000 | d", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrochloric acid (conc 37% or greater)", "title": "Hydrochloric acid (conc 37% or greater) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrocyanic acid\n\n**CAS No.:** 74-90-8\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Hydrocyanic acid | 74-90-8 | 2,500 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-90-8", "file": "hydrocyanic-acid.md", "generated": true, "harvested": "2026-08-15", "id": "hydrocyanic-acid", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Hydrocyanic acid | 74-90-8 | 2,500 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrocyanic acid", "title": "Hydrocyanic acid \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrofluoric Acid, Anhydrous\n\n**CAS No.:** 7664-39-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Hydrofluoric Acid, Anhydrous | 7664-39-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7664-39-3", "file": "hydrofluoric-acid-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "hydrofluoric-acid-anhydrous", "psm_tq_lbs": "1000", "source_quote": "Hydrofluoric Acid, Anhydrous | 7664-39-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrofluoric Acid, Anhydrous", "title": "Hydrofluoric Acid, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Bromide\n\n**CAS No.:** 10035-10-6\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Hydrogen Bromide | 10035-10-6 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10035-10-6", "file": "hydrogen-bromide.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-bromide", "psm_tq_lbs": "5000", "source_quote": "Hydrogen Bromide | 10035-10-6 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Bromide", "title": "Hydrogen Bromide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen chloride (anhydrous) [Hydrochloric acid]\n\n**CAS No.:** 7647-01-0\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a\n\n> Hydrogen chloride (anhydrous) [Hydrochloric acid] | 7647-01-0 | 5,000 | a\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7647-01-0", "file": "hydrogen-chloride-anhydrous-hydrochloric-acid.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-chloride-anhydrous-hydrochloric-acid", "rmp_basis": "a", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Hydrogen chloride (anhydrous) [Hydrochloric acid] | 7647-01-0 | 5,000 | a", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrogen chloride (anhydrous) [Hydrochloric acid]", "title": "Hydrogen chloride (anhydrous) [Hydrochloric acid] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Chloride\n\n**CAS No.:** 7647-01-0\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Hydrogen Chloride | 7647-01-0 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7647-01-0", "file": "hydrogen-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-chloride", "psm_tq_lbs": "5000", "source_quote": "Hydrogen Chloride | 7647-01-0 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Chloride", "title": "Hydrogen Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Cyanide, Anhydrous\n\n**CAS No.:** 74-90-8\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Hydrogen Cyanide, Anhydrous | 74-90-8 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-90-8", "file": "hydrogen-cyanide-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-cyanide-anhydrous", "psm_tq_lbs": "1000", "source_quote": "Hydrogen Cyanide, Anhydrous | 74-90-8 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Cyanide, Anhydrous", "title": "Hydrogen Cyanide, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid]\n\n**CAS No.:** 7664-39-3\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid] | 7664-39-3 | 1,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7664-39-3", "file": "hydrogen-fluoride-hydrofluoric-acid-conc-50-or-greater-hydrofluoric-acid.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-fluoride-hydrofluoric-acid-conc-50-or-greater-hydrofluoric-acid", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid] | 7664-39-3 | 1,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid]", "title": "Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) [Hydrofluoric acid] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Fluoride\n\n**CAS No.:** 7664-39-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Hydrogen Fluoride | 7664-39-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7664-39-3", "file": "hydrogen-fluoride.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-fluoride", "psm_tq_lbs": "1000", "source_quote": "Hydrogen Fluoride | 7664-39-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Fluoride", "title": "Hydrogen Fluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Peroxide (52% by weight or greater)\n\n**CAS No.:** 7722-84-1\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Hydrogen Peroxide (52% by weight or greater) | 7722-84-1 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7722-84-1", "file": "hydrogen-peroxide-52-by-weight-or-greater.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-peroxide-52-by-weight-or-greater", "psm_tq_lbs": "7500", "source_quote": "Hydrogen Peroxide (52% by weight or greater) | 7722-84-1 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Peroxide (52% by weight or greater)", "title": "Hydrogen Peroxide (52% by weight or greater) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen selenide\n\n**CAS No.:** 7783-07-5\n\n**EPA RMP TQ (lbs):** 500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Hydrogen selenide | 7783-07-5 | 500 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7783-07-5", "file": "hydrogen-selenide-2.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-selenide-2", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "500", "source_quote": "Hydrogen selenide | 7783-07-5 | 500 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrogen selenide", "title": "Hydrogen selenide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Selenide\n\n**CAS No.:** 7783-07-5\n\n**OSHA PSM TQ (lbs):** 150\n\n> Hydrogen Selenide | 7783-07-5 | 150\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-07-5", "file": "hydrogen-selenide.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-selenide", "psm_tq_lbs": "150", "source_quote": "Hydrogen Selenide | 7783-07-5 | 150", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Selenide", "title": "Hydrogen Selenide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen sulfide\n\n**CAS No.:** 7783-06-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Hydrogen sulfide | 7783-06-4 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7783-06-4", "file": "hydrogen-sulfide-2.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-sulfide-2", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Hydrogen sulfide | 7783-06-4 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrogen sulfide", "title": "Hydrogen sulfide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen Sulfide\n\n**CAS No.:** 7783-06-4\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Hydrogen Sulfide | 7783-06-4 | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-06-4", "file": "hydrogen-sulfide.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen-sulfide", "psm_tq_lbs": "1500", "source_quote": "Hydrogen Sulfide | 7783-06-4 | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydrogen Sulfide", "title": "Hydrogen Sulfide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydrogen\n\n**CAS No.:** 1333-74-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Hydrogen | 1333-74-0 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "1333-74-0", "file": "hydrogen.md", "generated": true, "harvested": "2026-08-15", "id": "hydrogen", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Hydrogen | 1333-74-0 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Hydrogen", "title": "Hydrogen \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Hydroxylamine\n\n**CAS No.:** 7803-49-8\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Hydroxylamine | 7803-49-8 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7803-49-8", "file": "hydroxylamine.md", "generated": true, "harvested": "2026-08-15", "id": "hydroxylamine", "psm_tq_lbs": "2500", "source_quote": "Hydroxylamine | 7803-49-8 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Hydroxylamine", "title": "Hydroxylamine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]\n\n**CAS No.:** 13463-40-6\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] | 13463-40-6 | 2,500 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "13463-40-6", "file": "iron-pentacarbonyl-iron-carbonyl-fe-co-5-tb-5-11.md", "generated": true, "harvested": "2026-08-15", "id": "iron-pentacarbonyl-iron-carbonyl-fe-co-5-tb-5-11", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] | 13463-40-6 | 2,500 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]", "title": "Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Iron, Pentacarbonyl\n\n**CAS No.:** 13463-40-6\n\n**OSHA PSM TQ (lbs):** 250\n\n> Iron, Pentacarbonyl | 13463-40-6 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "13463-40-6", "file": "iron-pentacarbonyl.md", "generated": true, "harvested": "2026-08-15", "id": "iron-pentacarbonyl", "psm_tq_lbs": "250", "source_quote": "Iron, Pentacarbonyl | 13463-40-6 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Iron, Pentacarbonyl", "title": "Iron, Pentacarbonyl \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isobutane [Propane, 2-methyl]\n\n**CAS No.:** 75-28-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Isobutane [Propane, 2-methyl] | 75-28-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-28-5", "file": "isobutane-propane-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "isobutane-propane-2-methyl", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Isobutane [Propane, 2-methyl] | 75-28-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isobutane [Propane, 2-methyl]", "title": "Isobutane [Propane, 2-methyl] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isobutyronitrile [Propanenitrile, 2-methyl-]\n\n**CAS No.:** 78-82-0\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Isobutyronitrile [Propanenitrile, 2-methyl-] | 78-82-0 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "78-82-0", "file": "isobutyronitrile-propanenitrile-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "isobutyronitrile-propanenitrile-2-methyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Isobutyronitrile [Propanenitrile, 2-methyl-] | 78-82-0 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isobutyronitrile [Propanenitrile, 2-methyl-]", "title": "Isobutyronitrile [Propanenitrile, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isopentane [Butane, 2-methyl-]\n\n**CAS No.:** 78-78-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Isopentane [Butane, 2-methyl-] | 78-78-4 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "78-78-4", "file": "isopentane-butane-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "isopentane-butane-2-methyl", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Isopentane [Butane, 2-methyl-] | 78-78-4 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isopentane [Butane, 2-methyl-]", "title": "Isopentane [Butane, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isoprene [1,3-Butadinene, 2-methyl-]\n\n**CAS No.:** 78-79-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Isoprene [1,3-Butadinene, 2-methyl-] | 78-79-5 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "78-79-5", "file": "isoprene-1-3-butadinene-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "isoprene-1-3-butadinene-2-methyl", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Isoprene [1,3-Butadinene, 2-methyl-] | 78-79-5 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isoprene [1,3-Butadinene, 2-methyl-]", "title": "Isoprene [1,3-Butadinene, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isopropyl chloride [Propane, 2-chloro-]\n\n**CAS No.:** 75-29-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Isopropyl chloride [Propane, 2-chloro-] | 75-29-6 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-29-6", "file": "isopropyl-chloride-propane-2-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "isopropyl-chloride-propane-2-chloro", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Isopropyl chloride [Propane, 2-chloro-] | 75-29-6 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isopropyl chloride [Propane, 2-chloro-]", "title": "Isopropyl chloride [Propane, 2-chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester]\n\n**CAS No.:** 108-23-6\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester] | 108-23-6 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "108-23-6", "file": "isopropyl-chloroformate-carbonochloridic-acid-1-methylethyl-ester.md", "generated": true, "harvested": "2026-08-15", "id": "isopropyl-chloroformate-carbonochloridic-acid-1-methylethyl-ester", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester] | 108-23-6 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester]", "title": "Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isopropylamine [2-Propanamine]\n\n**CAS No.:** 75-31-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Isopropylamine [2-Propanamine] | 75-31-0 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-31-0", "file": "isopropylamine-2-propanamine.md", "generated": true, "harvested": "2026-08-15", "id": "isopropylamine-2-propanamine", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Isopropylamine [2-Propanamine] | 75-31-0 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Isopropylamine [2-Propanamine]", "title": "Isopropylamine [2-Propanamine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Isopropylamine\n\n**CAS No.:** 75-31-0\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Isopropylamine | 75-31-0 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-31-0", "file": "isopropylamine.md", "generated": true, "harvested": "2026-08-15", "id": "isopropylamine", "psm_tq_lbs": "5000", "source_quote": "Isopropylamine | 75-31-0 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Isopropylamine", "title": "Isopropylamine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ketene\n\n**CAS No.:** 463-51-4\n\n**OSHA PSM TQ (lbs):** 100\n\n> Ketene | 463-51-4 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "463-51-4", "file": "ketene.md", "generated": true, "harvested": "2026-08-15", "id": "ketene", "psm_tq_lbs": "100", "source_quote": "Ketene | 463-51-4 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ketene", "title": "Ketene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methacrylaldehyde\n\n**CAS No.:** 78-85-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Methacrylaldehyde | 78-85-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "78-85-3", "file": "methacrylaldehyde.md", "generated": true, "harvested": "2026-08-15", "id": "methacrylaldehyde", "psm_tq_lbs": "1000", "source_quote": "Methacrylaldehyde | 78-85-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methacrylaldehyde", "title": "Methacrylaldehyde \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methacrylonitrile [2-Propenenitrile, 2-methyl-]\n\n**CAS No.:** 126-98-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methacrylonitrile [2-Propenenitrile, 2-methyl-] | 126-98-7 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "126-98-7", "file": "methacrylonitrile-2-propenenitrile-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "methacrylonitrile-2-propenenitrile-2-methyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Methacrylonitrile [2-Propenenitrile, 2-methyl-] | 126-98-7 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methacrylonitrile [2-Propenenitrile, 2-methyl-]", "title": "Methacrylonitrile [2-Propenenitrile, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methacryloyl Chloride\n\n**CAS No.:** 920-46-7\n\n**OSHA PSM TQ (lbs):** 150\n\n> Methacryloyl Chloride | 920-46-7 | 150\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "920-46-7", "file": "methacryloyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "methacryloyl-chloride", "psm_tq_lbs": "150", "source_quote": "Methacryloyl Chloride | 920-46-7 | 150", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methacryloyl Chloride", "title": "Methacryloyl Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methacryloyloxyethyl Isocyanate\n\n**CAS No.:** 30674-80-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> Methacryloyloxyethyl Isocyanate | 30674-80-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "30674-80-7", "file": "methacryloyloxyethyl-isocyanate.md", "generated": true, "harvested": "2026-08-15", "id": "methacryloyloxyethyl-isocyanate", "psm_tq_lbs": "100", "source_quote": "Methacryloyloxyethyl Isocyanate | 30674-80-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methacryloyloxyethyl Isocyanate", "title": "Methacryloyloxyethyl Isocyanate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methane\n\n**CAS No.:** 74-82-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Methane | 74-82-8 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-82-8", "file": "methane.md", "generated": true, "harvested": "2026-08-15", "id": "methane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Methane | 74-82-8 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methane", "title": "Methane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Acrylonitrile\n\n**CAS No.:** 126-98-7\n\n**OSHA PSM TQ (lbs):** 250\n\n> Methyl Acrylonitrile | 126-98-7 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "126-98-7", "file": "methyl-acrylonitrile.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-acrylonitrile", "psm_tq_lbs": "250", "source_quote": "Methyl Acrylonitrile | 126-98-7 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Acrylonitrile", "title": "Methyl Acrylonitrile \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Bromide\n\n**CAS No.:** 74-83-9\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Methyl Bromide | 74-83-9 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-83-9", "file": "methyl-bromide.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-bromide", "psm_tq_lbs": "2500", "source_quote": "Methyl Bromide | 74-83-9 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Bromide", "title": "Methyl Bromide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl chloride [Methane, chloro-]\n\n**CAS No.:** 74-87-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a\n\n> Methyl chloride [Methane, chloro-] | 74-87-3 | 10,000 | a\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-87-3", "file": "methyl-chloride-methane-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-chloride-methane-chloro", "rmp_basis": "a", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Methyl chloride [Methane, chloro-] | 74-87-3 | 10,000 | a", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl chloride [Methane, chloro-]", "title": "Methyl chloride [Methane, chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Chloride\n\n**CAS No.:** 74-87-3\n\n**OSHA PSM TQ (lbs):** 15000\n\n> Methyl Chloride | 74-87-3 | 15000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-87-3", "file": "methyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-chloride", "psm_tq_lbs": "15000", "source_quote": "Methyl Chloride | 74-87-3 | 15000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Chloride", "title": "Methyl Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl chloroformate [Carbonochloridic acid, methylester]\n\n**CAS No.:** 79-22-1\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methyl chloroformate [Carbonochloridic acid, methylester] | 79-22-1 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "79-22-1", "file": "methyl-chloroformate-carbonochloridic-acid-methylester.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-chloroformate-carbonochloridic-acid-methylester", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Methyl chloroformate [Carbonochloridic acid, methylester] | 79-22-1 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl chloroformate [Carbonochloridic acid, methylester]", "title": "Methyl chloroformate [Carbonochloridic acid, methylester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Chloroformate\n\n**CAS No.:** 79-22-1\n\n**OSHA PSM TQ (lbs):** 500\n\n> Methyl Chloroformate | 79-22-1 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "79-22-1", "file": "methyl-chloroformate.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-chloroformate", "psm_tq_lbs": "500", "source_quote": "Methyl Chloroformate | 79-22-1 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Chloroformate", "title": "Methyl Chloroformate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl ether [Methane, oxybis-]\n\n**CAS No.:** 115-10-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Methyl ether [Methane, oxybis-] | 115-10-6 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "115-10-6", "file": "methyl-ether-methane-oxybis.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-ether-methane-oxybis", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Methyl ether [Methane, oxybis-] | 115-10-6 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl ether [Methane, oxybis-]", "title": "Methyl ether [Methane, oxybis-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Ethyl Ketone Peroxide (concentration >60%)\n\n**CAS No.:** 1338-23-4\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Methyl Ethyl Ketone Peroxide (concentration >60%) | 1338-23-4 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "1338-23-4", "file": "methyl-ethyl-ketone-peroxide-concentration-60.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-ethyl-ketone-peroxide-concentration-60", "psm_tq_lbs": "5000", "source_quote": "Methyl Ethyl Ketone Peroxide (concentration >60%) | 1338-23-4 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Ethyl Ketone Peroxide (concentration >60%)", "title": "Methyl Ethyl Ketone Peroxide (concentration >60%) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Fluoroacetate\n\n**CAS No.:** 453-18-9\n\n**OSHA PSM TQ (lbs):** 100\n\n> Methyl Fluoroacetate | 453-18-9 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "453-18-9", "file": "methyl-fluoroacetate.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-fluoroacetate", "psm_tq_lbs": "100", "source_quote": "Methyl Fluoroacetate | 453-18-9 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Fluoroacetate", "title": "Methyl Fluoroacetate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Fluorosulfate\n\n**CAS No.:** 421-20-5\n\n**OSHA PSM TQ (lbs):** 100\n\n> Methyl Fluorosulfate | 421-20-5 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "421-20-5", "file": "methyl-fluorosulfate.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-fluorosulfate", "psm_tq_lbs": "100", "source_quote": "Methyl Fluorosulfate | 421-20-5 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Fluorosulfate", "title": "Methyl Fluorosulfate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl formate [Formic acid, methyl ester]\n\n**CAS No.:** 107-31-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Methyl formate [Formic acid, methyl ester] | 107-31-3 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-31-3", "file": "methyl-formate-formic-acid-methyl-ester.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-formate-formic-acid-methyl-ester", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Methyl formate [Formic acid, methyl ester] | 107-31-3 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl formate [Formic acid, methyl ester]", "title": "Methyl formate [Formic acid, methyl ester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl hydrazine [Hydrazine, methyl-]\n\n**CAS No.:** 60-34-4\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methyl hydrazine [Hydrazine, methyl-] | 60-34-4 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "60-34-4", "file": "methyl-hydrazine-hydrazine-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-hydrazine-hydrazine-methyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Methyl hydrazine [Hydrazine, methyl-] | 60-34-4 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl hydrazine [Hydrazine, methyl-]", "title": "Methyl hydrazine [Hydrazine, methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Hydrazine\n\n**CAS No.:** 60-34-4\n\n**OSHA PSM TQ (lbs):** 100\n\n> Methyl Hydrazine | 60-34-4 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "60-34-4", "file": "methyl-hydrazine.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-hydrazine", "psm_tq_lbs": "100", "source_quote": "Methyl Hydrazine | 60-34-4 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Hydrazine", "title": "Methyl Hydrazine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Iodide\n\n**CAS No.:** 74-88-4\n\n**OSHA PSM TQ (lbs):** 7500\n\n> Methyl Iodide | 74-88-4 | 7500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-88-4", "file": "methyl-iodide.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-iodide", "psm_tq_lbs": "7500", "source_quote": "Methyl Iodide | 74-88-4 | 7500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Iodide", "title": "Methyl Iodide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl isocyanate [Methane, isocyanato-]\n\n**CAS No.:** 624-83-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Methyl isocyanate [Methane, isocyanato-] | 624-83-9 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "624-83-9", "file": "methyl-isocyanate-methane-isocyanato.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-isocyanate-methane-isocyanato", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Methyl isocyanate [Methane, isocyanato-] | 624-83-9 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl isocyanate [Methane, isocyanato-]", "title": "Methyl isocyanate [Methane, isocyanato-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Isocyanate\n\n**CAS No.:** 624-83-9\n\n**OSHA PSM TQ (lbs):** 250\n\n> Methyl Isocyanate | 624-83-9 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "624-83-9", "file": "methyl-isocyanate.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-isocyanate", "psm_tq_lbs": "250", "source_quote": "Methyl Isocyanate | 624-83-9 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Isocyanate", "title": "Methyl Isocyanate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl mercaptan [Methanethiol]\n\n**CAS No.:** 74-93-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methyl mercaptan [Methanethiol] | 74-93-1 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-93-1", "file": "methyl-mercaptan-methanethiol.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-mercaptan-methanethiol", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Methyl mercaptan [Methanethiol] | 74-93-1 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl mercaptan [Methanethiol]", "title": "Methyl mercaptan [Methanethiol] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Mercaptan\n\n**CAS No.:** 74-93-1\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Methyl Mercaptan | 74-93-1 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-93-1", "file": "methyl-mercaptan.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-mercaptan", "psm_tq_lbs": "5000", "source_quote": "Methyl Mercaptan | 74-93-1 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Mercaptan", "title": "Methyl Mercaptan \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl thiocyanate [Thiocyanic acid, methyl ester]\n\n**CAS No.:** 556-64-9\n\n**EPA RMP TQ (lbs):** 20,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methyl thiocyanate [Thiocyanic acid, methyl ester] | 556-64-9 | 20,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "556-64-9", "file": "methyl-thiocyanate-thiocyanic-acid-methyl-ester.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-thiocyanate-thiocyanic-acid-methyl-ester", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "20,000", "source_quote": "Methyl thiocyanate [Thiocyanic acid, methyl ester] | 556-64-9 | 20,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyl thiocyanate [Thiocyanic acid, methyl ester]", "title": "Methyl thiocyanate [Thiocyanic acid, methyl ester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyl Vinyl Ketone\n\n**CAS No.:** 78-94-4\n\n**OSHA PSM TQ (lbs):** 100\n\n> Methyl Vinyl Ketone | 78-94-4 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "78-94-4", "file": "methyl-vinyl-ketone.md", "generated": true, "harvested": "2026-08-15", "id": "methyl-vinyl-ketone", "psm_tq_lbs": "100", "source_quote": "Methyl Vinyl Ketone | 78-94-4 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyl Vinyl Ketone", "title": "Methyl Vinyl Ketone \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methylamine, Anhydrous\n\n**CAS No.:** 74-89-5\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Methylamine, Anhydrous | 74-89-5 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "74-89-5", "file": "methylamine-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "methylamine-anhydrous", "psm_tq_lbs": "1000", "source_quote": "Methylamine, Anhydrous | 74-89-5 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methylamine, Anhydrous", "title": "Methylamine, Anhydrous \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methylamine [Methanamine]\n\n**CAS No.:** 74-89-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Methylamine [Methanamine] | 74-89-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-89-5", "file": "methylamine-methanamine.md", "generated": true, "harvested": "2026-08-15", "id": "methylamine-methanamine", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Methylamine [Methanamine] | 74-89-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methylamine [Methanamine]", "title": "Methylamine [Methanamine] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyltrichlorosilane [Silane, trichloromethyl-]\n\n**CAS No.:** 75-79-6\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Methyltrichlorosilane [Silane, trichloromethyl-] | 75-79-6 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-79-6", "file": "methyltrichlorosilane-silane-trichloromethyl.md", "generated": true, "harvested": "2026-08-15", "id": "methyltrichlorosilane-silane-trichloromethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Methyltrichlorosilane [Silane, trichloromethyl-] | 75-79-6 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Methyltrichlorosilane [Silane, trichloromethyl-]", "title": "Methyltrichlorosilane [Silane, trichloromethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Methyltrichlorosilane\n\n**CAS No.:** 75-79-6\n\n**OSHA PSM TQ (lbs):** 500\n\n> Methyltrichlorosilane | 75-79-6 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-79-6", "file": "methyltrichlorosilane.md", "generated": true, "harvested": "2026-08-15", "id": "methyltrichlorosilane", "psm_tq_lbs": "500", "source_quote": "Methyltrichlorosilane | 75-79-6 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Methyltrichlorosilane", "title": "Methyltrichlorosilane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nickel Carbonly (Nickel Tetracarbonyl)\n\n**CAS No.:** 13463-39-3\n\n**OSHA PSM TQ (lbs):** 150\n\n> Nickel Carbonly (Nickel Tetracarbonyl) | 13463-39-3 | 150\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "13463-39-3", "file": "nickel-carbonly-nickel-tetracarbonyl.md", "generated": true, "harvested": "2026-08-15", "id": "nickel-carbonly-nickel-tetracarbonyl", "psm_tq_lbs": "150", "source_quote": "Nickel Carbonly (Nickel Tetracarbonyl) | 13463-39-3 | 150", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nickel Carbonly (Nickel Tetracarbonyl)", "title": "Nickel Carbonly (Nickel Tetracarbonyl) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nickel carbonyl\n\n**CAS No.:** 13463-39-3\n\n**EPA RMP TQ (lbs):** 1,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Nickel carbonyl | 13463-39-3 | 1,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "13463-39-3", "file": "nickel-carbonyl.md", "generated": true, "harvested": "2026-08-15", "id": "nickel-carbonyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "1,000", "source_quote": "Nickel carbonyl | 13463-39-3 | 1,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Nickel carbonyl", "title": "Nickel carbonyl \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitric Acid (94.5% by weight or greater)\n\n**CAS No.:** 7697-37-2\n\n**OSHA PSM TQ (lbs):** 500\n\n> Nitric Acid (94.5% by weight or greater) | 7697-37-2 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7697-37-2", "file": "nitric-acid-94-5-by-weight-or-greater.md", "generated": true, "harvested": "2026-08-15", "id": "nitric-acid-94-5-by-weight-or-greater", "psm_tq_lbs": "500", "source_quote": "Nitric Acid (94.5% by weight or greater) | 7697-37-2 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitric Acid (94.5% by weight or greater)", "title": "Nitric Acid (94.5% by weight or greater) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitric acid (conc 80% or greater)\n\n**CAS No.:** 7697-37-2\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Nitric acid (conc 80% or greater) | 7697-37-2 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7697-37-2", "file": "nitric-acid-conc-80-or-greater.md", "generated": true, "harvested": "2026-08-15", "id": "nitric-acid-conc-80-or-greater", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Nitric acid (conc 80% or greater) | 7697-37-2 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Nitric acid (conc 80% or greater)", "title": "Nitric acid (conc 80% or greater) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitric oxide [Nitrogen oxide (NO)]\n\n**CAS No.:** 10102-43-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Nitric oxide [Nitrogen oxide (NO)] | 10102-43-9 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "10102-43-9", "file": "nitric-oxide-nitrogen-oxide-no.md", "generated": true, "harvested": "2026-08-15", "id": "nitric-oxide-nitrogen-oxide-no", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Nitric oxide [Nitrogen oxide (NO)] | 10102-43-9 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Nitric oxide [Nitrogen oxide (NO)]", "title": "Nitric oxide [Nitrogen oxide (NO)] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitric Oxide\n\n**CAS No.:** 10102-43-9\n\n**OSHA PSM TQ (lbs):** 250\n\n> Nitric Oxide | 10102-43-9 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10102-43-9", "file": "nitric-oxide.md", "generated": true, "harvested": "2026-08-15", "id": "nitric-oxide", "psm_tq_lbs": "250", "source_quote": "Nitric Oxide | 10102-43-9 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitric Oxide", "title": "Nitric Oxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitroaniline (para Nitroaniline\n\n**CAS No.:** 100-01-6\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Nitroaniline (para Nitroaniline | 100-01-6 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "100-01-6", "file": "nitroaniline-para-nitroaniline.md", "generated": true, "harvested": "2026-08-15", "id": "nitroaniline-para-nitroaniline", "psm_tq_lbs": "5000", "source_quote": "Nitroaniline (para Nitroaniline | 100-01-6 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitroaniline (para Nitroaniline", "title": "Nitroaniline (para Nitroaniline \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitrogen Dioxide\n\n**CAS No.:** 10102-44-0\n\n**OSHA PSM TQ (lbs):** 250\n\n> Nitrogen Dioxide | 10102-44-0 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10102-44-0", "file": "nitrogen-dioxide.md", "generated": true, "harvested": "2026-08-15", "id": "nitrogen-dioxide", "psm_tq_lbs": "250", "source_quote": "Nitrogen Dioxide | 10102-44-0 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitrogen Dioxide", "title": "Nitrogen Dioxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitrogen Oxides (NO; NO2; N204; N203)\n\n**CAS No.:** 10102-44-0\n\n**OSHA PSM TQ (lbs):** 250\n\n> Nitrogen Oxides (NO; NO2; N204; N203) | 10102-44-0 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10102-44-0", "file": "nitrogen-oxides-no-no2-n204-n203.md", "generated": true, "harvested": "2026-08-15", "id": "nitrogen-oxides-no-no2-n204-n203", "psm_tq_lbs": "250", "source_quote": "Nitrogen Oxides (NO; NO2; N204; N203) | 10102-44-0 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitrogen Oxides (NO; NO2; N204; N203)", "title": "Nitrogen Oxides (NO; NO2; N204; N203) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitrogen Tetroxide (also called Nitrogen Peroxide)\n\n**CAS No.:** 10544-72-6\n\n**OSHA PSM TQ (lbs):** 250\n\n> Nitrogen Tetroxide (also called Nitrogen Peroxide) | 10544-72-6 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10544-72-6", "file": "nitrogen-tetroxide-also-called-nitrogen-peroxide.md", "generated": true, "harvested": "2026-08-15", "id": "nitrogen-tetroxide-also-called-nitrogen-peroxide", "psm_tq_lbs": "250", "source_quote": "Nitrogen Tetroxide (also called Nitrogen Peroxide) | 10544-72-6 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitrogen Tetroxide (also called Nitrogen Peroxide)", "title": "Nitrogen Tetroxide (also called Nitrogen Peroxide) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitrogen Trifluoride\n\n**CAS No.:** 7783-54-2\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Nitrogen Trifluoride | 7783-54-2 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-54-2", "file": "nitrogen-trifluoride.md", "generated": true, "harvested": "2026-08-15", "id": "nitrogen-trifluoride", "psm_tq_lbs": "5000", "source_quote": "Nitrogen Trifluoride | 7783-54-2 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitrogen Trifluoride", "title": "Nitrogen Trifluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitrogen Trioxide\n\n**CAS No.:** 10544-73-7\n\n**OSHA PSM TQ (lbs):** 250\n\n> Nitrogen Trioxide | 10544-73-7 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10544-73-7", "file": "nitrogen-trioxide.md", "generated": true, "harvested": "2026-08-15", "id": "nitrogen-trioxide", "psm_tq_lbs": "250", "source_quote": "Nitrogen Trioxide | 10544-73-7 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitrogen Trioxide", "title": "Nitrogen Trioxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Nitromethane\n\n**CAS No.:** 75-52-5\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Nitromethane | 75-52-5 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-52-5", "file": "nitromethane.md", "generated": true, "harvested": "2026-08-15", "id": "nitromethane", "psm_tq_lbs": "2500", "source_quote": "Nitromethane | 75-52-5 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Nitromethane", "title": "Nitromethane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid)\n\n**CAS No.:** 8014-95-7\n\n**OSHA PSM TQ (lbs):** 1,000\n\n> Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) | 8014-95-7 | 1,000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "8014-95-7", "file": "oleum-65-to-80-by-weight-also-called-fuming-sulfuric-acid.md", "generated": true, "harvested": "2026-08-15", "id": "oleum-65-to-80-by-weight-also-called-fuming-sulfuric-acid", "psm_tq_lbs": "1,000", "source_quote": "Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) | 8014-95-7 | 1,000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid)", "title": "Oleum (65% to 80% by weight; also called Fuming Sulfuric Acid) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]\n\n**CAS No.:** 8014-95-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** e\n\n> 8014-95-7 | Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] 1 | 10,000 | e | 10025-87-3 | Phosphorus oxychloride [Phosphoryl chloride] | 5,000 | b | 10049-04-4 | Chlorine dioxide [Chlorine oxide (ClO 2 )] | 1,000 | c | 10102-43-9 | Nitric oxide [Nitrogen oxide (NO)] | 10,000 | b | 10294-34-5 | Boron trichloride [Borane, trichloro-] | 5,000 | b | 13463-39-3 | Nickel carbonyl | 1,000 | b | 13463-40-6 | Iron, pentacarbonyl- [Iron carbonyl (Fe(CO) 5 ), (TB-5-11)-] | 2,500 | b | 19287-45-7 | Diborane | 2,500 | b | 26471-62-5 | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-1] 1 | 10,000 | a | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "8014-95-7", "file": "oleum-fuming-sulfuric-acid-sulfuric-acid-mixture-with-sulfur-trioxide.md", "generated": true, "harvested": "2026-08-15", "id": "oleum-fuming-sulfuric-acid-sulfuric-acid-mixture-with-sulfur-trioxide", "rmp_basis": "e", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "8014-95-7 | Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] 1 | 10,000 | e | 10025-87-3 | Phosphorus oxychloride [Phosphoryl chloride] | 5,000 | b | 10049-04-4 | Chlorine dioxide [Chlorine oxide (ClO 2 )] | 1,000 | c | 10102-43-9 | Nitric oxide [Nitrogen oxide (NO)] | 10,000 | b | 10294-34-5 | Boron trichloride [Borane, trichloro-] | 5,000 | b | 13463-39-3 | Nickel carbonyl | 1,000 | b | 13463-40-6 | Iron, pentacarbonyl- [Iron carbonyl (Fe(CO) 5 ), (TB-5-11)-] | 2,500 | b | 19287-45-7 | Diborane | 2,500 | b | 26471-62-5 | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-1] 1 | 10,000 | a | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]", "title": "Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Osmium Tetroxide\n\n**CAS No.:** 20816-12-0\n\n**OSHA PSM TQ (lbs):** 100\n\n> Osmium Tetroxide | 20816-12-0 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "20816-12-0", "file": "osmium-tetroxide.md", "generated": true, "harvested": "2026-08-15", "id": "osmium-tetroxide", "psm_tq_lbs": "100", "source_quote": "Osmium Tetroxide | 20816-12-0 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Osmium Tetroxide", "title": "Osmium Tetroxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Oxygen Difluoride (Fluorine Monoxide)\n\n**CAS No.:** 7783-41-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> Oxygen Difluoride (Fluorine Monoxide) | 7783-41-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-41-7", "file": "oxygen-difluoride-fluorine-monoxide.md", "generated": true, "harvested": "2026-08-15", "id": "oxygen-difluoride-fluorine-monoxide", "psm_tq_lbs": "100", "source_quote": "Oxygen Difluoride (Fluorine Monoxide) | 7783-41-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Oxygen Difluoride (Fluorine Monoxide)", "title": "Oxygen Difluoride (Fluorine Monoxide) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Ozone\n\n**CAS No.:** 10028-15-6\n\n**OSHA PSM TQ (lbs):** 100\n\n> Ozone | 10028-15-6 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10028-15-6", "file": "ozone.md", "generated": true, "harvested": "2026-08-15", "id": "ozone", "psm_tq_lbs": "100", "source_quote": "Ozone | 10028-15-6 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Ozone", "title": "Ozone \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Pentaborane\n\n**CAS No.:** 19624-22-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> Pentaborane | 19624-22-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "19624-22-7", "file": "pentaborane.md", "generated": true, "harvested": "2026-08-15", "id": "pentaborane", "psm_tq_lbs": "100", "source_quote": "Pentaborane | 19624-22-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Pentaborane", "title": "Pentaborane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Pentane\n\n**CAS No.:** 109-66-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Pentane | 109-66-0 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "109-66-0", "file": "pentane.md", "generated": true, "harvested": "2026-08-15", "id": "pentane", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Pentane | 109-66-0 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Pentane", "title": "Pentane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid)\n\n**CAS No.:** 79-21-0\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid) | 79-21-0 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "79-21-0", "file": "peracetic-acid-concentration-60-acetic-acid-also-called-peroxyacetic-acid.md", "generated": true, "harvested": "2026-08-15", "id": "peracetic-acid-concentration-60-acetic-acid-also-called-peroxyacetic-acid", "psm_tq_lbs": "1000", "source_quote": "Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid) | 79-21-0 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid)", "title": "Peracetic Acid (concentration >60% Acetic Acid; also called Peroxyacetic Acid) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Peracetic acid [Ethaneperoxoic acid]\n\n**CAS No.:** 79-21-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Peracetic acid [Ethaneperoxoic acid] | 79-21-0 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "79-21-0", "file": "peracetic-acid-ethaneperoxoic-acid.md", "generated": true, "harvested": "2026-08-15", "id": "peracetic-acid-ethaneperoxoic-acid", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Peracetic acid [Ethaneperoxoic acid] | 79-21-0 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Peracetic acid [Ethaneperoxoic acid]", "title": "Peracetic acid [Ethaneperoxoic acid] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Perchloric Acid (concentration >60% by weight)\n\n**CAS No.:** 7601-90-3\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Perchloric Acid (concentration >60% by weight) | 7601-90-3 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7601-90-3", "file": "perchloric-acid-concentration-60-by-weight.md", "generated": true, "harvested": "2026-08-15", "id": "perchloric-acid-concentration-60-by-weight", "psm_tq_lbs": "5000", "source_quote": "Perchloric Acid (concentration >60% by weight) | 7601-90-3 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Perchloric Acid (concentration >60% by weight)", "title": "Perchloric Acid (concentration >60% by weight) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Perchloromethyl Mercaptan\n\n**CAS No.:** 594-42-3\n\n**OSHA PSM TQ (lbs):** 150\n\n> Perchloromethyl Mercaptan | 594-42-3 | 150\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "594-42-3", "file": "perchloromethyl-mercaptan.md", "generated": true, "harvested": "2026-08-15", "id": "perchloromethyl-mercaptan", "psm_tq_lbs": "150", "source_quote": "Perchloromethyl Mercaptan | 594-42-3 | 150", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Perchloromethyl Mercaptan", "title": "Perchloromethyl Mercaptan \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]\n\n**CAS No.:** 594-42-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-] | 594-42-3 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "594-42-3", "file": "perchloromethylmercaptan-methanesulfenyl-chloride-trichloro.md", "generated": true, "harvested": "2026-08-15", "id": "perchloromethylmercaptan-methanesulfenyl-chloride-trichloro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-] | 594-42-3 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]", "title": "Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Perchloryl Fluoride\n\n**CAS No.:** 7616-94-6\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Perchloryl Fluoride | 7616-94-6 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7616-94-6", "file": "perchloryl-fluoride.md", "generated": true, "harvested": "2026-08-15", "id": "perchloryl-fluoride", "psm_tq_lbs": "5000", "source_quote": "Perchloryl Fluoride | 7616-94-6 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Perchloryl Fluoride", "title": "Perchloryl Fluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid)\n\n**CAS No.:** 79-21-0\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid) | 79-21-0 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "79-21-0", "file": "peroxyacetic-acid-concentration-60-acetic-acid-also-called-peracetic-acid.md", "generated": true, "harvested": "2026-08-15", "id": "peroxyacetic-acid-concentration-60-acetic-acid-also-called-peracetic-acid", "psm_tq_lbs": "1000", "source_quote": "Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid) | 79-21-0 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid)", "title": "Peroxyacetic Acid (concentration >60% Acetic Acid; also called Peracetic Acid) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosgene (also called Carbonyl Chloride)\n\n**CAS No.:** 75-44-5\n\n**OSHA PSM TQ (lbs):** 100\n\n> Phosgene (also called Carbonyl Chloride) | 75-44-5 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-44-5", "file": "phosgene-also-called-carbonyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosgene-also-called-carbonyl-chloride", "psm_tq_lbs": "100", "source_quote": "Phosgene (also called Carbonyl Chloride) | 75-44-5 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Phosgene (also called Carbonyl Chloride)", "title": "Phosgene (also called Carbonyl Chloride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosgene [Carbonic dichloride]\n\n**CAS No.:** 75-44-5\n\n**EPA RMP TQ (lbs):** 500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Phosgene [Carbonic dichloride] | 75-44-5 | 500 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-44-5", "file": "phosgene-carbonic-dichloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosgene-carbonic-dichloride", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "500", "source_quote": "Phosgene [Carbonic dichloride] | 75-44-5 | 500 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Phosgene [Carbonic dichloride]", "title": "Phosgene [Carbonic dichloride] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphine (Hydrogen Phosphide)\n\n**CAS No.:** 7803-51-2\n\n**OSHA PSM TQ (lbs):** 100\n\n> Phosphine (Hydrogen Phosphide) | 7803-51-2 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7803-51-2", "file": "phosphine-hydrogen-phosphide.md", "generated": true, "harvested": "2026-08-15", "id": "phosphine-hydrogen-phosphide", "psm_tq_lbs": "100", "source_quote": "Phosphine (Hydrogen Phosphide) | 7803-51-2 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Phosphine (Hydrogen Phosphide)", "title": "Phosphine (Hydrogen Phosphide) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphine\n\n**CAS No.:** 7803-51-2\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Phosphine | 7803-51-2 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7803-51-2", "file": "phosphine.md", "generated": true, "harvested": "2026-08-15", "id": "phosphine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Phosphine | 7803-51-2 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Phosphine", "title": "Phosphine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphorus Oxychloride (also called Phosphoryl Chloride)\n\n**CAS No.:** 10025-87-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Phosphorus Oxychloride (also called Phosphoryl Chloride) | 10025-87-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10025-87-3", "file": "phosphorus-oxychloride-also-called-phosphoryl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosphorus-oxychloride-also-called-phosphoryl-chloride", "psm_tq_lbs": "1000", "source_quote": "Phosphorus Oxychloride (also called Phosphoryl Chloride) | 10025-87-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Phosphorus Oxychloride (also called Phosphoryl Chloride)", "title": "Phosphorus Oxychloride (also called Phosphoryl Chloride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphorus oxychloride [Phosphoryl chloride]\n\n**CAS No.:** 10025-87-3\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Phosphorus oxychloride [Phosphoryl chloride] | 10025-87-3 | 5,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "10025-87-3", "file": "phosphorus-oxychloride-phosphoryl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosphorus-oxychloride-phosphoryl-chloride", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Phosphorus oxychloride [Phosphoryl chloride] | 10025-87-3 | 5,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Phosphorus oxychloride [Phosphoryl chloride]", "title": "Phosphorus oxychloride [Phosphoryl chloride] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphorus trichloride [Phosphorous trichloride]\n\n**CAS No.:** 7719-12-2\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Phosphorus trichloride [Phosphorous trichloride] | 7719-12-2 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7719-12-2", "file": "phosphorus-trichloride-phosphorous-trichloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosphorus-trichloride-phosphorous-trichloride", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Phosphorus trichloride [Phosphorous trichloride] | 7719-12-2 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Phosphorus trichloride [Phosphorous trichloride]", "title": "Phosphorus trichloride [Phosphorous trichloride] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphorus Trichloride\n\n**CAS No.:** 7719-12-2\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Phosphorus Trichloride | 7719-12-2 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7719-12-2", "file": "phosphorus-trichloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosphorus-trichloride", "psm_tq_lbs": "1000", "source_quote": "Phosphorus Trichloride | 7719-12-2 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Phosphorus Trichloride", "title": "Phosphorus Trichloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Phosphoryl Chloride (also called Phosphorus Oxychloride)\n\n**CAS No.:** 10025-87-3\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Phosphoryl Chloride (also called Phosphorus Oxychloride) | 10025-87-3 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10025-87-3", "file": "phosphoryl-chloride-also-called-phosphorus-oxychloride.md", "generated": true, "harvested": "2026-08-15", "id": "phosphoryl-chloride-also-called-phosphorus-oxychloride", "psm_tq_lbs": "1000", "source_quote": "Phosphoryl Chloride (also called Phosphorus Oxychloride) | 10025-87-3 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Phosphoryl Chloride (also called Phosphorus Oxychloride)", "title": "Phosphoryl Chloride (also called Phosphorus Oxychloride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Piperidine\n\n**CAS No.:** 110-89-4\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Piperidine | 110-89-4 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "110-89-4", "file": "piperidine.md", "generated": true, "harvested": "2026-08-15", "id": "piperidine", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Piperidine | 110-89-4 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Piperidine", "title": "Piperidine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propadiene [1,2-Propadiene]\n\n**CAS No.:** 463-49-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Propadiene [1,2-Propadiene] | 463-49-0 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "463-49-0", "file": "propadiene-1-2-propadiene.md", "generated": true, "harvested": "2026-08-15", "id": "propadiene-1-2-propadiene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Propadiene [1,2-Propadiene] | 463-49-0 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propadiene [1,2-Propadiene]", "title": "Propadiene [1,2-Propadiene] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propane\n\n**CAS No.:** 74-98-6\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Propane | 74-98-6 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-98-6", "file": "propane.md", "generated": true, "harvested": "2026-08-15", "id": "propane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Propane | 74-98-6 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propane", "title": "Propane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propargyl Bromide\n\n**CAS No.:** 106-96-7\n\n**OSHA PSM TQ (lbs):** 100\n\n> Propargyl Bromide | 106-96-7 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "106-96-7", "file": "propargyl-bromide.md", "generated": true, "harvested": "2026-08-15", "id": "propargyl-bromide", "psm_tq_lbs": "100", "source_quote": "Propargyl Bromide | 106-96-7 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Propargyl Bromide", "title": "Propargyl Bromide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propionitrile [Propanenitrile]\n\n**CAS No.:** 107-12-0\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Propionitrile [Propanenitrile] | 107-12-0 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-12-0", "file": "propionitrile-propanenitrile.md", "generated": true, "harvested": "2026-08-15", "id": "propionitrile-propanenitrile", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Propionitrile [Propanenitrile] | 107-12-0 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propionitrile [Propanenitrile]", "title": "Propionitrile [Propanenitrile] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propyl chloroformate [Carbonochloridic acid, propylester]\n\n**CAS No.:** 109-61-5\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Propyl chloroformate [Carbonochloridic acid, propylester] | 109-61-5 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "109-61-5", "file": "propyl-chloroformate-carbonochloridic-acid-propylester.md", "generated": true, "harvested": "2026-08-15", "id": "propyl-chloroformate-carbonochloridic-acid-propylester", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Propyl chloroformate [Carbonochloridic acid, propylester] | 109-61-5 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propyl chloroformate [Carbonochloridic acid, propylester]", "title": "Propyl chloroformate [Carbonochloridic acid, propylester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propyl Nitrate\n\n**CAS No.:** 627-3-4\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Propyl Nitrate | 627-3-4 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "627-3-4", "file": "propyl-nitrate.md", "generated": true, "harvested": "2026-08-15", "id": "propyl-nitrate", "psm_tq_lbs": "2500", "source_quote": "Propyl Nitrate | 627-3-4 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Propyl Nitrate", "title": "Propyl Nitrate \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propylene [1-Propene]\n\n**CAS No.:** 115-07-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Propylene [1-Propene] | 115-07-1 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "115-07-1", "file": "propylene-1-propene.md", "generated": true, "harvested": "2026-08-15", "id": "propylene-1-propene", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Propylene [1-Propene] | 115-07-1 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propylene [1-Propene]", "title": "Propylene [1-Propene] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propylene oxide [Oxirane, methyl-]\n\n**CAS No.:** 75-56-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Propylene oxide [Oxirane, methyl-] | 75-56-9 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-56-9", "file": "propylene-oxide-oxirane-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "propylene-oxide-oxirane-methyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Propylene oxide [Oxirane, methyl-] | 75-56-9 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propylene oxide [Oxirane, methyl-]", "title": "Propylene oxide [Oxirane, methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propyleneimine [Aziridine, 2-methyl-]\n\n**CAS No.:** 75-55-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Propyleneimine [Aziridine, 2-methyl-] | 75-55-8 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-55-8", "file": "propyleneimine-aziridine-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "propyleneimine-aziridine-2-methyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Propyleneimine [Aziridine, 2-methyl-] | 75-55-8 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propyleneimine [Aziridine, 2-methyl-]", "title": "Propyleneimine [Aziridine, 2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Propyne [1-Propyne]\n\n**CAS No.:** 74-99-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Propyne [1-Propyne] | 74-99-7 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "74-99-7", "file": "propyne-1-propyne.md", "generated": true, "harvested": "2026-08-15", "id": "propyne-1-propyne", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Propyne [1-Propyne] | 74-99-7 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Propyne [1-Propyne]", "title": "Propyne [1-Propyne] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sarin\n\n**CAS No.:** 107-44-8\n\n**OSHA PSM TQ (lbs):** 100\n\n> Sarin | 107-44-8 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "107-44-8", "file": "sarin.md", "generated": true, "harvested": "2026-08-15", "id": "sarin", "psm_tq_lbs": "100", "source_quote": "Sarin | 107-44-8 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sarin", "title": "Sarin \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Selenium Hexafluoride\n\n**CAS No.:** 7783-79-1\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Selenium Hexafluoride | 7783-79-1 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-79-1", "file": "selenium-hexafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "selenium-hexafluoride", "psm_tq_lbs": "1000", "source_quote": "Selenium Hexafluoride | 7783-79-1 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Selenium Hexafluoride", "title": "Selenium Hexafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Silane\n\n**CAS No.:** 7803-62-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Silane | 7803-62-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7803-62-5", "file": "silane.md", "generated": true, "harvested": "2026-08-15", "id": "silane", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Silane | 7803-62-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Silane", "title": "Silane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Stibine (Antimony Hydride)\n\n**CAS No.:** 7803-52-3\n\n**OSHA PSM TQ (lbs):** 500\n\n> Stibine (Antimony Hydride) | 7803-52-3 | 500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7803-52-3", "file": "stibine-antimony-hydride.md", "generated": true, "harvested": "2026-08-15", "id": "stibine-antimony-hydride", "psm_tq_lbs": "500", "source_quote": "Stibine (Antimony Hydride) | 7803-52-3 | 500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Stibine (Antimony Hydride)", "title": "Stibine (Antimony Hydride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur dioxide (anhydrous)\n\n**CAS No.:** 7446-09-5\n\n**EPA RMP TQ (lbs):** 5,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Sulfur dioxide (anhydrous) | 7446-09-5 | 5,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7446-09-5", "file": "sulfur-dioxide-anhydrous.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-dioxide-anhydrous", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "5,000", "source_quote": "Sulfur dioxide (anhydrous) | 7446-09-5 | 5,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Sulfur dioxide (anhydrous)", "title": "Sulfur dioxide (anhydrous) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur Dioxide (liquid)\n\n**CAS No.:** 7446-09-5\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Sulfur Dioxide (liquid) | 7446-09-5 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7446-09-5", "file": "sulfur-dioxide-liquid.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-dioxide-liquid", "psm_tq_lbs": "1000", "source_quote": "Sulfur Dioxide (liquid) | 7446-09-5 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sulfur Dioxide (liquid)", "title": "Sulfur Dioxide (liquid) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur Pentafluoride\n\n**CAS No.:** 5714-22-7\n\n**OSHA PSM TQ (lbs):** 250\n\n> Sulfur Pentafluoride | 5714-22-7 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "5714-22-7", "file": "sulfur-pentafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-pentafluoride", "psm_tq_lbs": "250", "source_quote": "Sulfur Pentafluoride | 5714-22-7 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sulfur Pentafluoride", "title": "Sulfur Pentafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-]\n\n**CAS No.:** 7783-60-0\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] | 7783-60-0 | 2,500 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7783-60-0", "file": "sulfur-tetrafluoride-sulfur-fluoride-sf4-t-4.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-tetrafluoride-sulfur-fluoride-sf4-t-4", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] | 7783-60-0 | 2,500 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-]", "title": "Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur Tetrafluoride\n\n**CAS No.:** 7783-60-0\n\n**OSHA PSM TQ (lbs):** 250\n\n> Sulfur Tetrafluoride | 7783-60-0 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-60-0", "file": "sulfur-tetrafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-tetrafluoride", "psm_tq_lbs": "250", "source_quote": "Sulfur Tetrafluoride | 7783-60-0 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sulfur Tetrafluoride", "title": "Sulfur Tetrafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur Trioxide (also called Sulfuric Anhydride)\n\n**CAS No.:** 7446-11-9\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Sulfur Trioxide (also called Sulfuric Anhydride) | 7446-11-9 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7446-11-9", "file": "sulfur-trioxide-also-called-sulfuric-anhydride.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-trioxide-also-called-sulfuric-anhydride", "psm_tq_lbs": "1000", "source_quote": "Sulfur Trioxide (also called Sulfuric Anhydride) | 7446-11-9 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sulfur Trioxide (also called Sulfuric Anhydride)", "title": "Sulfur Trioxide (also called Sulfuric Anhydride) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfur trioxide\n\n**CAS No.:** 7446-11-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a, b\n\n> Sulfur trioxide | 7446-11-9 | 10,000 | a, b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7446-11-9", "file": "sulfur-trioxide.md", "generated": true, "harvested": "2026-08-15", "id": "sulfur-trioxide", "rmp_basis": "a, b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Sulfur trioxide | 7446-11-9 | 10,000 | a, b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Sulfur trioxide", "title": "Sulfur trioxide \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Sulfuric Anhydride (also called Sulfur Trioxide)\n\n**CAS No.:** 7446-11-9\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Sulfuric Anhydride (also called Sulfur Trioxide) | 7446-11-9 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7446-11-9", "file": "sulfuric-anhydride-also-called-sulfur-trioxide.md", "generated": true, "harvested": "2026-08-15", "id": "sulfuric-anhydride-also-called-sulfur-trioxide", "psm_tq_lbs": "1000", "source_quote": "Sulfuric Anhydride (also called Sulfur Trioxide) | 7446-11-9 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Sulfuric Anhydride (also called Sulfur Trioxide)", "title": "Sulfuric Anhydride (also called Sulfur Trioxide) \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tellurium Hexafluoride\n\n**CAS No.:** 7783-80-4\n\n**OSHA PSM TQ (lbs):** 250\n\n> Tellurium Hexafluoride | 7783-80-4 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7783-80-4", "file": "tellurium-hexafluoride.md", "generated": true, "harvested": "2026-08-15", "id": "tellurium-hexafluoride", "psm_tq_lbs": "250", "source_quote": "Tellurium Hexafluoride | 7783-80-4 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Tellurium Hexafluoride", "title": "Tellurium Hexafluoride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetrafluoroethylene [Ethene, tetrafluoro-]\n\n**CAS No.:** 116-14-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Tetrafluoroethylene [Ethene, tetrafluoro-] | 116-14-3 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "116-14-3", "file": "tetrafluoroethylene-ethene-tetrafluoro.md", "generated": true, "harvested": "2026-08-15", "id": "tetrafluoroethylene-ethene-tetrafluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Tetrafluoroethylene [Ethene, tetrafluoro-] | 116-14-3 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Tetrafluoroethylene [Ethene, tetrafluoro-]", "title": "Tetrafluoroethylene [Ethene, tetrafluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetrafluoroethylene\n\n**CAS No.:** 116-14-3\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Tetrafluoroethylene | 116-14-3 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "116-14-3", "file": "tetrafluoroethylene.md", "generated": true, "harvested": "2026-08-15", "id": "tetrafluoroethylene", "psm_tq_lbs": "5000", "source_quote": "Tetrafluoroethylene | 116-14-3 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Tetrafluoroethylene", "title": "Tetrafluoroethylene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetrafluorohydrazine\n\n**CAS No.:** 10036-47-2\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Tetrafluorohydrazine | 10036-47-2 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10036-47-2", "file": "tetrafluorohydrazine.md", "generated": true, "harvested": "2026-08-15", "id": "tetrafluorohydrazine", "psm_tq_lbs": "5000", "source_quote": "Tetrafluorohydrazine | 10036-47-2 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Tetrafluorohydrazine", "title": "Tetrafluorohydrazine \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetramethyl Lead\n\n**CAS No.:** 75-74-1\n\n**OSHA PSM TQ (lbs):** 1000\n\n> Tetramethyl Lead | 75-74-1 | 1000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "75-74-1", "file": "tetramethyl-lead.md", "generated": true, "harvested": "2026-08-15", "id": "tetramethyl-lead", "psm_tq_lbs": "1000", "source_quote": "Tetramethyl Lead | 75-74-1 | 1000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Tetramethyl Lead", "title": "Tetramethyl Lead \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetramethyllead [Plumbane, tetramethyl-]\n\n**CAS No.:** 75-74-1\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Tetramethyllead [Plumbane, tetramethyl-] | 75-74-1 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-74-1", "file": "tetramethyllead-plumbane-tetramethyl.md", "generated": true, "harvested": "2026-08-15", "id": "tetramethyllead-plumbane-tetramethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Tetramethyllead [Plumbane, tetramethyl-] | 75-74-1 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Tetramethyllead [Plumbane, tetramethyl-]", "title": "Tetramethyllead [Plumbane, tetramethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetramethylsilane [Silane, tetramethyl-]\n\n**CAS No.:** 75-76-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Tetramethylsilane [Silane, tetramethyl-] | 75-76-3 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-76-3", "file": "tetramethylsilane-silane-tetramethyl.md", "generated": true, "harvested": "2026-08-15", "id": "tetramethylsilane-silane-tetramethyl", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Tetramethylsilane [Silane, tetramethyl-] | 75-76-3 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Tetramethylsilane [Silane, tetramethyl-]", "title": "Tetramethylsilane [Silane, tetramethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Tetranitromethane [Methane, tetranitro-]\n\n**CAS No.:** 509-14-8\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Tetranitromethane [Methane, tetranitro-] | 509-14-8 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "509-14-8", "file": "tetranitromethane-methane-tetranitro.md", "generated": true, "harvested": "2026-08-15", "id": "tetranitromethane-methane-tetranitro", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Tetranitromethane [Methane, tetranitro-] | 509-14-8 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Tetranitromethane [Methane, tetranitro-]", "title": "Tetranitromethane [Methane, tetranitro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Thionyl Chloride\n\n**CAS No.:** 7719-09-7\n\n**OSHA PSM TQ (lbs):** 250\n\n> Thionyl Chloride | 7719-09-7 | 250\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "7719-09-7", "file": "thionyl-chloride.md", "generated": true, "harvested": "2026-08-15", "id": "thionyl-chloride", "psm_tq_lbs": "250", "source_quote": "Thionyl Chloride | 7719-09-7 | 250", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Thionyl Chloride", "title": "Thionyl Chloride \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]\n\n**CAS No.:** 7550-45-0\n\n**EPA RMP TQ (lbs):** 2,500\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] | 7550-45-0 | 2,500 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "7550-45-0", "file": "titanium-tetrachloride-titanium-chloride-ticl4-t-4.md", "generated": true, "harvested": "2026-08-15", "id": "titanium-tetrachloride-titanium-chloride-ticl4-t-4", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "2,500", "source_quote": "Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] | 7550-45-0 | 2,500 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]", "title": "Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]\n\n**CAS No.:** 584-84-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a\n\n> Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-] 1 | 584-84-9 | 10,000 | a | Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] 1 | 91-08-7 | 10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "584-84-9", "file": "toluene-2-4-diisocyanate-benzene-2-4-diisocyanato-1-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "toluene-2-4-diisocyanate-benzene-2-4-diisocyanato-1-methyl", "rmp_basis": "a", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-] 1 | 584-84-9 | 10,000 | a | Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] 1 | 91-08-7 | 10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]", "title": "Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]\n\n**CAS No.:** 91-08-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a\n\n> 10,000 | a | Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] 1 | 91-08-7 | 10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "91-08-7", "file": "toluene-2-6-diisocyanate-benzene-1-3-diisocyanato-2-methyl.md", "generated": true, "harvested": "2026-08-15", "id": "toluene-2-6-diisocyanate-benzene-1-3-diisocyanato-2-methyl", "rmp_basis": "a", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "10,000 | a | Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] 1 | 91-08-7 | 10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]", "title": "Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]\n\n**CAS No.:** 26471-62-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** a\n\n> 10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "26471-62-5", "file": "toluene-diisocyanate-unspecified-isomer-benzene-1-3-diisocyanatomethyl.md", "generated": true, "harvested": "2026-08-15", "id": "toluene-diisocyanate-unspecified-isomer-benzene-1-3-diisocyanatomethyl", "rmp_basis": "a", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "10,000 | a | Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] 1 | 26471-62-5 | 10,000 | a | Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b | Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b | 1 The mixture exemption in <https://www.ecfr.gov/current/title-40/section-68.115#p-68.115(b)(1)> \u00a7 68.115(b)(1) does not apply to the substance. | Note: Basis for Listing: | a Mandated for listing by Congress. | b On EHS list, vapor pressure 10 mmHg or greater. | c Toxic gas.", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]", "title": "Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trichloro (chloromethyl) Silane\n\n**CAS No.:** 1558-25-4\n\n**OSHA PSM TQ (lbs):** 100\n\n> Trichloro (chloromethyl) Silane | 1558-25-4 | 100\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "1558-25-4", "file": "trichloro-chloromethyl-silane.md", "generated": true, "harvested": "2026-08-15", "id": "trichloro-chloromethyl-silane", "psm_tq_lbs": "100", "source_quote": "Trichloro (chloromethyl) Silane | 1558-25-4 | 100", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Trichloro (chloromethyl) Silane", "title": "Trichloro (chloromethyl) Silane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trichloro (dichlorophenyl) Silane\n\n**CAS No.:** 27137-85-5\n\n**OSHA PSM TQ (lbs):** 2500\n\n> Trichloro (dichlorophenyl) Silane | 27137-85-5 | 2500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "27137-85-5", "file": "trichloro-dichlorophenyl-silane.md", "generated": true, "harvested": "2026-08-15", "id": "trichloro-dichlorophenyl-silane", "psm_tq_lbs": "2500", "source_quote": "Trichloro (dichlorophenyl) Silane | 27137-85-5 | 2500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Trichloro (dichlorophenyl) Silane", "title": "Trichloro (dichlorophenyl) Silane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trichlorosilane [Silane, trichloro-]\n\n**CAS No.:** 10025-78-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Trichlorosilane [Silane, trichloro-] | 10025-78-2 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "10025-78-2", "file": "trichlorosilane-silane-trichloro.md", "generated": true, "harvested": "2026-08-15", "id": "trichlorosilane-silane-trichloro", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Trichlorosilane [Silane, trichloro-] | 10025-78-2 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Trichlorosilane [Silane, trichloro-]", "title": "Trichlorosilane [Silane, trichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trichlorosilane\n\n**CAS No.:** 10025-78-2\n\n**OSHA PSM TQ (lbs):** 5000\n\n> Trichlorosilane | 10025-78-2 | 5000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "10025-78-2", "file": "trichlorosilane.md", "generated": true, "harvested": "2026-08-15", "id": "trichlorosilane", "psm_tq_lbs": "5000", "source_quote": "Trichlorosilane | 10025-78-2 | 5000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Trichlorosilane", "title": "Trichlorosilane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trifluorochloroethylene [Ethene, chlorotrifluoro-]\n\n**CAS No.:** 79-38-9\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Trifluorochloroethylene [Ethene, chlorotrifluoro-] | 79-38-9 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "79-38-9", "file": "trifluorochloroethylene-ethene-chlorotrifluoro.md", "generated": true, "harvested": "2026-08-15", "id": "trifluorochloroethylene-ethene-chlorotrifluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Trifluorochloroethylene [Ethene, chlorotrifluoro-] | 79-38-9 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Trifluorochloroethylene [Ethene, chlorotrifluoro-]", "title": "Trifluorochloroethylene [Ethene, chlorotrifluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trifluorochloroethylene\n\n**CAS No.:** 79-38-9\n\n**OSHA PSM TQ (lbs):** 10000\n\n> Trifluorochloroethylene | 79-38-9 | 10000\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "79-38-9", "file": "trifluorochloroethylene.md", "generated": true, "harvested": "2026-08-15", "id": "trifluorochloroethylene", "psm_tq_lbs": "10000", "source_quote": "Trifluorochloroethylene | 79-38-9 | 10000", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Trifluorochloroethylene", "title": "Trifluorochloroethylene \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trimethylamine [Methanamine, N,N-dimethyl-]\n\n**CAS No.:** 75-50-3\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Trimethylamine [Methanamine, N,N-dimethyl-] | 75-50-3 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-50-3", "file": "trimethylamine-methanamine-n-n-dimethyl.md", "generated": true, "harvested": "2026-08-15", "id": "trimethylamine-methanamine-n-n-dimethyl", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Trimethylamine [Methanamine, N,N-dimethyl-] | 75-50-3 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Trimethylamine [Methanamine, N,N-dimethyl-]", "title": "Trimethylamine [Methanamine, N,N-dimethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trimethylchlorosilane [Silane, chlorotrimethyl-]\n\n**CAS No.:** 75-77-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-77-4", "file": "trimethylchlorosilane-silane-chlorotrimethyl.md", "generated": true, "harvested": "2026-08-15", "id": "trimethylchlorosilane-silane-chlorotrimethyl", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "10,000", "source_quote": "Trimethylchlorosilane [Silane, chlorotrimethyl-] | 75-77-4 | 10,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Trimethylchlorosilane [Silane, chlorotrimethyl-]", "title": "Trimethylchlorosilane [Silane, chlorotrimethyl-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Trimethyoxysilane\n\n**CAS No.:** 2487-90-3\n\n**OSHA PSM TQ (lbs):** 1500\n\n> Trimethyoxysilane | 2487-90-3 | 1500\n\nSource: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA>\n", "cas_number": "2487-90-3", "file": "trimethyoxysilane.md", "generated": true, "harvested": "2026-08-15", "id": "trimethyoxysilane", "psm_tq_lbs": "1500", "source_quote": "Trimethyoxysilane | 2487-90-3 | 1500", "sources": ["https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA"], "stale_after": "2027-08-15", "substance": "Trimethyoxysilane", "title": "Trimethyoxysilane \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl acetate monomer [Acetic acid ethenyl ester]\n\n**CAS No.:** 108-05-4\n\n**EPA RMP TQ (lbs):** 15,000\n\n**RMP category:** toxic\n\n**RMP basis for listing:** b\n\n> Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "108-05-4", "file": "vinyl-acetate-monomer-acetic-acid-ethenyl-ester.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-acetate-monomer-acetic-acid-ethenyl-ester", "rmp_basis": "b", "rmp_category": "toxic", "rmp_tq_lbs": "15,000", "source_quote": "Vinyl acetate monomer [Acetic acid ethenyl ester] | 108-05-4 | 15,000 | b", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl acetate monomer [Acetic acid ethenyl ester]", "title": "Vinyl acetate monomer [Acetic acid ethenyl ester] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl acetylene [1-Buten-3-yne]\n\n**CAS No.:** 689-97-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Vinyl acetylene [1-Buten-3-yne] | 689-97-4 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "689-97-4", "file": "vinyl-acetylene-1-buten-3-yne.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-acetylene-1-buten-3-yne", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinyl acetylene [1-Buten-3-yne] | 689-97-4 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl acetylene [1-Buten-3-yne]", "title": "Vinyl acetylene [1-Buten-3-yne] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl chloride [Ethene, chloro-]\n\n**CAS No.:** 75-01-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** a, f\n\n> Vinyl chloride [Ethene, chloro-] | 75-01-4 | 10,000 | a, f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-01-4", "file": "vinyl-chloride-ethene-chloro.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-chloride-ethene-chloro", "rmp_basis": "a, f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinyl chloride [Ethene, chloro-] | 75-01-4 | 10,000 | a, f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl chloride [Ethene, chloro-]", "title": "Vinyl chloride [Ethene, chloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl ethyl ether [Ethene, ethoxy-]\n\n**CAS No.:** 109-92-2\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Vinyl ethyl ether [Ethene, ethoxy-] | 109-92-2 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "109-92-2", "file": "vinyl-ethyl-ether-ethene-ethoxy.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-ethyl-ether-ethene-ethoxy", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinyl ethyl ether [Ethene, ethoxy-] | 109-92-2 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl ethyl ether [Ethene, ethoxy-]", "title": "Vinyl ethyl ether [Ethene, ethoxy-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl fluoride [Ethene, fluoro-]\n\n**CAS No.:** 75-02-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Vinyl fluoride [Ethene, fluoro-] | 75-02-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-02-5", "file": "vinyl-fluoride-ethene-fluoro.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-fluoride-ethene-fluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinyl fluoride [Ethene, fluoro-] | 75-02-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl fluoride [Ethene, fluoro-]", "title": "Vinyl fluoride [Ethene, fluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinyl methyl ether [Ethene, methoxy-]\n\n**CAS No.:** 107-25-5\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Vinyl methyl ether [Ethene, methoxy-] | 107-25-5 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "107-25-5", "file": "vinyl-methyl-ether-ethene-methoxy.md", "generated": true, "harvested": "2026-08-15", "id": "vinyl-methyl-ether-ethene-methoxy", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinyl methyl ether [Ethene, methoxy-] | 107-25-5 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinyl methyl ether [Ethene, methoxy-]", "title": "Vinyl methyl ether [Ethene, methoxy-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinylidene chloride [Ethene, 1,1-dichloro-]\n\n**CAS No.:** 75-35-4\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** g\n\n> Vinylidene chloride [Ethene, 1,1-dichloro-] | 75-35-4 | 10,000 | g\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-35-4", "file": "vinylidene-chloride-ethene-1-1-dichloro.md", "generated": true, "harvested": "2026-08-15", "id": "vinylidene-chloride-ethene-1-1-dichloro", "rmp_basis": "g", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinylidene chloride [Ethene, 1,1-dichloro-] | 75-35-4 | 10,000 | g", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinylidene chloride [Ethene, 1,1-dichloro-]", "title": "Vinylidene chloride [Ethene, 1,1-dichloro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}
{"asset": "psm-rmp-chemical-threshold-crossref", "body": "**Substance:** Vinylidene fluoride [Ethene, 1,1-difluoro-]\n\n**CAS No.:** 75-38-7\n\n**EPA RMP TQ (lbs):** 10,000\n\n**RMP category:** flammable\n\n**RMP basis for listing:** f\n\n> Vinylidene fluoride [Ethene, 1,1-difluoro-] | 75-38-7 | 10,000 | f\n\nSource: <https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130>\n", "cas_number": "75-38-7", "file": "vinylidene-fluoride-ethene-1-1-difluoro.md", "generated": true, "harvested": "2026-08-15", "id": "vinylidene-fluoride-ethene-1-1-difluoro", "rmp_basis": "f", "rmp_category": "flammable", "rmp_tq_lbs": "10,000", "source_quote": "Vinylidene fluoride [Ethene, 1,1-difluoro-] | 75-38-7 | 10,000 | f", "sources": ["https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-68/subpart-F/section-68.130"], "stale_after": "2027-08-15", "substance": "Vinylidene fluoride [Ethene, 1,1-difluoro-]", "title": "Vinylidene fluoride [Ethene, 1,1-difluoro-] \u2014 OSHA PSM vs EPA RMP: chemical threshold quantities side by side", "type": "cross-reference", "unverified_fields": "rmp_category", "verified": true}