---
type: threshold
id: ethylene-oxide-see-section-5220
asset: workplace-exposure-limits
title: "Ethylene oxide; see Section 5220 — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "75218 | | Ethylene oxide; see Section 5220 | 1 | 2 | | 5"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Ethylene oxide; see Section 5220"
pel_ppm: "1"
pel_mgm3: "2"
stel_ppm: "5"
verified: true
---
**Substance:** Ethylene oxide; see Section 5220

**PEL (ppm):** 1

**PEL (mg/m³):** 2

**STEL (ppm):** 5

> 75218 | | Ethylene oxide; see Section 5220 | 1 | 2 | | 5

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