# Germanium tetrahydride — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

For Germanium tetrahydride, pel (ppm) is 0.2; pel (mg/m³) is 0.6, verified against its source on 2026-08-05.

- **Substance:** Germanium tetrahydride
- **PEL (ppm):** 0.2
- **PEL (mg/m³):** 0.6

## What the source says

> 7782652 | | Germanium tetrahydride | 0.2 | 0.6

## 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/).