# Stibine (Antimony Hydride) — OSHA PSM vs EPA RMP: chemical threshold quantities side by side For Stibine (Antimony Hydride), cas no. is 7803-52-3; osha psm tq (lbs) is 500, verified against its source on 2026-08-15. - **Substance:** Stibine (Antimony Hydride) _(verified: appears in the quote below)_ - **CAS No.:** 7803-52-3 _(verified: appears in the quote below)_ - **OSHA PSM TQ (lbs):** 500 _(verified: appears in the quote below)_ ## What the source says > Stibine (Antimony Hydride) | 7803-52-3 | 500 ## Source - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.119AppA Last verified: 2026-08-15. Review by: 2027-08-15. Part of [OSHA PSM vs EPA RMP: chemical threshold quantities side by side](https://referencesource.org/psm-rmp-chemical-threshold-crossref/).