Acetone cyanohydrin — workplace exposure limit
What is the niosh rel (ppm) for Acetone cyanohydrin — workplace exposure limit?
For Acetone cyanohydrin, niosh rel (ppm) is C 1; niosh rel (mg/m³) is 4; cas no. is 75-86-5, verified against its source on 2026-09-08.
NIOSH REL C 1 ppm (4 mg/m3) [15-minute]
— cdc.gov, retrieved 2026-09-08
- Substance
- Acetone cyanohydrin verified
- CAS No.
- 75-86-5 verified
- NIOSH REL (ppm)
- C 1 verified
- NIOSH REL (mg/m³)
- 4 verified
- PEL (ppm)
- 4.7 per dir.ca.gov
- PEL (mg/m³)
- 5 per dir.ca.gov
- Ceiling
- C per dir.ca.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 - Acetone cyanohydrin
CAS No.
CAS No. 75-86-5
— all from cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
75865 | | Acetone cyanohydrin as CN | 4.7 | 5 | C
— dir.ca.gov, retrieved 2026-08-05
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0005.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html