# Manganese compounds (as Mn) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Manganese compounds (as Mn), cas no. is 7439-96-5; pel (mg/m³) is (C)5, verified against its source on 2026-08-05.

- **Substance:** Manganese compounds (as Mn)
- **CAS No.:** 7439-96-5
- **PEL (mg/m³):** (C)5

## What the source says

> Manganese compounds (as Mn) | 7439-96-5 | - | (C)5 | - |

## 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/).