---
type: threshold
id: selenium-hexafluoride
asset: workplace-exposure-limits
title: "Selenium hexafluoride — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "7783791 | | Selenium hexafluoride | 0.05 | 0.4"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Selenium hexafluoride"
pel_ppm: "0.05"
pel_mgm3: "0.4"
verified: true
---
**Substance:** Selenium hexafluoride

**PEL (ppm):** 0.05

**PEL (mg/m³):** 0.4

> 7783791 | | Selenium hexafluoride | 0.05 | 0.4

Source: <https://www.dir.ca.gov/title8/5155.html>