Potassium hydroxide — CAS 1310-58-3 — workplace exposure limit
What is the niosh rel (mg/m³) for Potassium hydroxide — CAS 1310-58-3 — workplace exposure limit?
For Potassium hydroxide, niosh rel (mg/m³) is C 2; cas no. is 1310-58-3, verified against its source on 2026-09-08.
NIOSH REL C 2 mg/m3
— cdc.gov, retrieved 2026-09-08
- Substance
- Potassium hydroxide verified
- CAS No.
- 1310-58-3 verified
- NIOSH REL (mg/m³)
- C 2 verified
- PEL (mg/m³)
- 2 per dir.ca.gov
- Ceiling notation
- the values given in the PEL columns are ceiling values 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 - Potassium hydroxide
CAS No.
CAS No. 1310-58-3
— all from cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
1310583 | | Potassium hydroxide; caustic potash | -- | 2 | C
— dir.ca.gov, retrieved 2026-09-28
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0523.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html