# Tetramethyl lead; tetramethylplumbane, as Pb — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Tetramethyl lead; tetramethylplumbane, as Pb, pel (mg/m³) is 0.075, verified against its source on 2026-08-05.

- **Substance:** Tetramethyl lead; tetramethylplumbane, as Pb
- **PEL (mg/m³):** 0.075

## What the source says

> 75741 | S | Tetramethyl lead; tetramethylplumbane, as Pb | -- | 0.075

## Source

- https://www.dir.ca.gov/title8/5155.html

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/).