Graphite (natural) — workplace exposure limit
What is the niosh rel, as stated for Graphite (natural) — workplace exposure limit?
For Graphite (natural), niosh rel, as stated is TWA 2.5 mg/m3 (resp); cas no. is 7782-42-5, verified against its source on 2026-09-08.
NIOSH REL TWA 2.5 mg/m3 (resp)
— cdc.gov, retrieved 2026-09-08
- Substance
- Graphite (natural) verified
- CAS No.
- 7782-42-5 verified
- NIOSH REL, as stated
- TWA 2.5 mg/m3 (resp) verified
- PEL (mg/m³)
- 2.5 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 - Graphite (natural)
CAS No.
CAS No. 7782-42-5
— all from cdc.gov, retrieved 2026-09-08
What osha.gov says
Graphite, natural, respirable dust | 7782-42-5 | - | (3) | - |
— osha.gov, retrieved 2026-08-05
What dir.ca.gov says
7782425 | | Graphite, natural respirable dust | | 2.5
— dir.ca.gov, retrieved 2026-08-05
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0306.html
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html