Nitrous oxide — workplace exposure limit
What is the niosh rel (ppm) for Nitrous oxide — workplace exposure limit?
For Nitrous oxide, niosh rel (ppm) is TWA 25; niosh rel (mg/m³) is 46; cas no. is 10024-97-2, verified against its source on 2026-09-08.
NIOSH REL TWA 25 ppm (46 mg/m3) (TWA over the time exposed)
— cdc.gov, retrieved 2026-09-08
- Substance
- Nitrous oxide verified
- CAS No.
- 10024-97-2 verified
- NIOSH REL (ppm)
- TWA 25 verified
- NIOSH REL (mg/m³)
- 46 verified
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 - Nitrous oxide
CAS No.
CAS No. 10024-97-2
— all from cdc.gov, retrieved 2026-09-08
Source
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0465.html