# Tungsten carbide (cemented) — workplace exposure limit For Tungsten carbide (cemented), niosh rel, as stated is See Appendix C; cas no. is 1: 11107-01-0 2: 12718-69-3 3: 37329-49-0, verified against its source on 2026-09-08. - **Substance:** Tungsten carbide (cemented) _(verified: appears in its own passage below)_ - **CAS No.:** 1: 11107-01-0 2: 12718-69-3 3: 37329-49-0 _(verified: appears in its own passage below)_ - **NIOSH REL, as stated:** See Appendix C _(verified: appears in the quote below)_ ## What the source says > NIOSH REL See Appendix C ## 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 - Tungsten carbide (cemented) ### CAS No. > CAS No. 1: 11107-01-0 2: 12718-69-3 3: 37329-49-0 ## Source - https://www.cdc.gov/niosh/npg/npgd0647.html Last verified: 2026-09-08. Review by: 2027-09-08. Part of [US workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side](https://referencesource.org/workplace-exposure-limits/).