p-Nitrochlorobenzene — CAS 100-00-5 — workplace exposure limit
What is the pel (mg/m³) for p-Nitrochlorobenzene — CAS 100-00-5 — workplace exposure limit?
For p-Nitrochlorobenzene, pel (mg/m³) is disputed: 1 per osha.gov, 0.64 per dir.ca.gov; cas no. is 100-00-5, verified against its source on 2026-08-05.
p-Nitrochlorobenzene | 100-00-5 | - | 1 | X |
— osha.gov, retrieved 2026-08-05
- Substance
- p-Nitrochlorobenzene verified
- CAS No.
- 100-00-5 verified
- PEL (mg/m³)
- 1 sources disagree
- PEL (ppm)
- 0.1 per dir.ca.gov
- NIOSH REL, as stated
- Ca See Appendix A [skin] per cdc.gov
What cdc.gov says
NIOSH REL Ca See Appendix A [skin]
— cdc.gov, retrieved 2026-09-08
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - p-Nitrochlorobenzene
CAS No.
CAS No. 100-00-5
What dir.ca.gov says
100005 | | 1-Chloro-4-nitrobenzene; see p-Nitrochlorobenzene
— dir.ca.gov, retrieved 2026-08-05
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
PEL (mg/m³)
osha.gov says pel (mg/m³) is 1, as of 2026-08-05.
p-Nitrochlorobenzene | 100-00-5 | - | 1 | X |
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
dir.ca.gov says pel (mg/m³) is 0.64, as of 2026-08-05.
100005 | S | p-Nitrochlorobenzene; 1-chloro-4-nitrobenzene | 0.1 | 0.64
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0452.html