# Tetraethyl lead (as Pb) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Tetraethyl lead (as Pb), cas no. is 78-00-2; pel (mg/m³) is 0.075, verified against its source on 2026-08-05.

- **Substance:** Tetraethyl lead (as Pb)
- **CAS No.:** 78-00-2
- **PEL (mg/m³):** 0.075

## What the source says

> Tetraethyl lead (as Pb) | 78-00-2 | - | 0.075 | 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/).