Silicon carbide — workplace exposure limit
What is the cas no. for Silicon carbide — workplace exposure limit?
For Silicon carbide, cas no. is 409-21-2, verified against its source on 2026-08-05.
Silicon carbide | 409-21-2 | - | - | - |
— osha.gov, retrieved 2026-08-05
- Substance
- Silicon carbide verified
- CAS No.
- 409-21-2 verified
- NIOSH REL, as stated
- TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) per cdc.gov
What cdc.gov says
NIOSH REL TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
— cdc.gov, retrieved 2026-09-08
What dir.ca.gov says
409212 | | Silicon carbide; SiC; see Particulates not otherwise regulated
— dir.ca.gov, retrieved 2026-08-05
Sources
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0555.html
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html