Reference Source

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
Sourceosha.gov
Verified
Review by
DatasetUS workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side

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

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.

What is the OSHA exposure limit for this substance?Find the exposure limit for a substance in workplace air — federal OSHA, California and NIOSH, side by side.