# TEPP (Tetraethyl pyrophosphate) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For TEPP (Tetraethyl pyrophosphate), cas no. is 107-49-3; pel (mg/m³) is 0.05, verified against its source on 2026-08-05.

- **Substance:** TEPP (Tetraethyl pyrophosphate)
- **CAS No.:** 107-49-3
- **PEL (mg/m³):** 0.05

## What the source says

> TEPP (Tetraethyl pyrophosphate) | 107-49-3 | - | 0.05 | X |

## Source

- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1

Last verified: 2026-08-05. Review by: 2027-08-05.
Part of [US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side](https://referencesource.org/workplace-exposure-limits/).