# n-Butyl lactate — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For n-Butyl lactate, pel (ppm) is 5; pel (mg/m³) is 25, verified against its source on 2026-08-05.

- **Substance:** n-Butyl lactate
- **PEL (ppm):** 5
- **PEL (mg/m³):** 25

## What the source says

> 138227 | | n-Butyl lactate | 5 | 25

## 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/).