# Methyl hydrazine (Monomethyl hydrazine) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Methyl hydrazine (Monomethyl hydrazine), cas no. is 60-34-4; pel (ppm) is (C)0.2; pel (mg/m³) is (C)0.35, verified against its source on 2026-08-05.

- **Substance:** Methyl hydrazine (Monomethyl hydrazine)
- **CAS No.:** 60-34-4
- **PEL (ppm):** (C)0.2
- **PEL (mg/m³):** (C)0.35

## What the source says

> Methyl hydrazine (Monomethyl hydrazine) | 60-34-4 | (C)0.2 | (C)0.35 | X |

## 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/).