# Hydrofluoric acid; see Hydrogen fluoride — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Hydrofluoric acid; see Hydrogen fluoride, substance is Hydrofluoric acid; see Hydrogen fluoride, verified against its source on 2026-08-05.

- **Substance:** Hydrofluoric acid; see Hydrogen fluoride

## What the source says

> 7664393 | | Hydrofluoric acid; see Hydrogen fluoride

## 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/).