Methyl hydrazine — CAS 60-34-4 — workplace exposure limit
What is the niosh rel (ppm) for Methyl hydrazine — CAS 60-34-4 — workplace exposure limit?
For Methyl hydrazine, niosh rel (ppm) is C 0.04; niosh rel (mg/m³) is 0.08; cas no. is 60-34-4, verified against its source on 2026-09-08.
NIOSH REL Ca C 0.04 ppm (0.08 mg/m3) [2-hr]
— cdc.gov, retrieved 2026-09-08
- Substance
- Methyl hydrazine verified
- CAS No.
- 60-34-4 verified
- NIOSH REL (ppm)
- C 0.04 verified
- NIOSH REL (mg/m³)
- 0.08 verified
- PEL (ppm)
- (C)0.2 per osha.gov
- PEL (mg/m³)
- (C)0.35 per osha.gov
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Substance
CDC - NIOSH Pocket Guide to Chemical Hazards - Methyl hydrazine
CAS No.
CAS No. 60-34-4
— all from cdc.gov, retrieved 2026-09-08
What osha.gov says
Methyl hydrazine (Monomethyl hydrazine) | 60-34-4 | (C)0.2 | (C)0.35 | X |
— osha.gov, retrieved 2026-08-05
What dir.ca.gov says
60344 | S | Methyl hydrazine; monomethyl hydrazine | 0.01 | 0.019
— dir.ca.gov, retrieved 2026-08-05
What dir.ca.gov says
60344 | | Monomethylhydrazine; see Methyl hydrazine
— dir.ca.gov, retrieved 2026-08-05
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0419.html
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html