Arsine — workplace exposure limit
What is the pel (ppm) for Arsine — workplace exposure limit?
For Arsine, pel (ppm) is 0.05; pel (mg/m³) is 0.2; cas no. is 7784-42-1, verified against its source on 2026-08-05.
Arsine | 7784-42-1 | 0.05 | 0.2 | - |
— osha.gov, retrieved 2026-08-05
0.05
The most of this substance workplace air may legally contain, averaged over an 8-hour shift — OSHA's permissible exposure limit (PEL), in parts per million, from the agency's own table row quoted below. Where federal OSHA and Cal/OSHA disagree, both limits are stated, each with its own agency's table row as evidence. NIOSH's number, where there is one, is shown separately: it is a recommended limit, not a legal one, and it is often the strictest of the three.
- Substance
- Arsine verified
- CAS No.
- 7784-42-1 verified
- PEL (ppm)
- 0.05 verified
- PEL (mg/m³)
- 0.2 verified
- NIOSH REL (mg/m³)
- C 0.002 per cdc.gov
What cdc.gov says
NIOSH REL Ca C 0.002 mg/m3 [15-minute]
— cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
7784421 | | Arsine; AsH$3 | 0.05 | 0.2
— dir.ca.gov, retrieved 2026-08-05
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0040.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html