# Arsine — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Arsine, cas no. is 7784-42-1; pel (ppm) is 0.05; pel (mg/m³) is 0.2, verified against its source on 2026-08-05.

- **Substance:** Arsine
- **CAS No.:** 7784-42-1
- **PEL (ppm):** 0.05
- **PEL (mg/m³):** 0.2

## What the source says

> Arsine | 7784-42-1 | 0.05 | 0.2 | - |

## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).