Silica, crystalline (as respirable dust) — workplace exposure limit
What is the niosh rel (mg/m³) for Silica, crystalline (as respirable dust) — workplace exposure limit?
For Silica, crystalline (as respirable dust), niosh rel (mg/m³) is TWA 0.05; cas no. is 14808-60-7, verified against its source on 2026-09-08.
NIOSH REL Ca TWA 0.05 mg/m³
— cdc.gov, retrieved 2026-09-08
- Substance
- Silica, crystalline (as respirable dust) verified
- CAS No.
- 14808-60-7 verified
- NIOSH REL (mg/m³)
- TWA 0.05 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 - Silica, crystalline (as respirable dust)
CAS No.
CAS No. 14808-60-7
— all from cdc.gov, retrieved 2026-09-08
Source
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0684.html