n-Butyronitrile — workplace exposure limit
What is the niosh rel (ppm) for n-Butyronitrile — workplace exposure limit?
For n-Butyronitrile, niosh rel (ppm) is TWA 8; niosh rel (mg/m³) is 22; cas no. is 109-74-0, verified against its source on 2026-09-08.
NIOSH REL TWA 8 ppm (22 mg/m3)
— cdc.gov, retrieved 2026-09-08
- Substance
- n-Butyronitrile verified
- CAS No.
- 109-74-0 verified
- NIOSH REL (ppm)
- TWA 8 verified
- NIOSH REL (mg/m³)
- 22 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 - n-Butyronitrile
CAS No.
CAS No. 109-74-0
— all from cdc.gov, retrieved 2026-09-08
Source
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0086.html