# o-Toluidine; o-methylaniline — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For o-Toluidine; o-methylaniline, pel (ppm) is 2; pel (mg/m³) is 9, verified against its source on 2026-08-05.

- **Substance:** o-Toluidine; o-methylaniline
- **PEL (ppm):** 2
- **PEL (mg/m³):** 9

## What the source says

> 95534 | S | o-Toluidine; o-methylaniline | 2 | 9

## 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/).