TEPP — CAS 107-49-3 — workplace exposure limit
What is the niosh rel (mg/m³) for TEPP — CAS 107-49-3 — workplace exposure limit?
For TEPP, niosh rel (mg/m³) is TWA 0.05; cas no. is 107-49-3, verified against its source on 2026-09-08.
NIOSH REL TWA 0.05 mg/m3 [skin]
— cdc.gov, retrieved 2026-09-08
- Substance
- TEPP verified
- CAS No.
- 107-49-3 verified
- NIOSH REL (mg/m³)
- TWA 0.05 verified
- PEL (mg/m³)
- 0.05 per osha.gov
- PEL (ppm)
- 0.004 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 - TEPP
CAS No.
CAS No. 107-49-3
— all from cdc.gov, retrieved 2026-09-08
What osha.gov says
TEPP (Tetraethyl pyrophosphate) | 107-49-3 | - | 0.05 | X |
— osha.gov, retrieved 2026-08-05
What dir.ca.gov says
107493 | S | TEPP; tetraethyl pyrophosphate; | 0.004 | 0.05
— dir.ca.gov, retrieved 2026-08-05
What dir.ca.gov says
107493 | | Tetraethyl pyrophosphate; see TEPP
— dir.ca.gov, retrieved 2026-08-05
Sources
- cdc.govhttps://www.cdc.gov/niosh/npg/npgd0590.html
- osha.govhttps://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
- dir.ca.govhttps://www.dir.ca.gov/title8/5155.html