---
type: threshold
id: dimethylethoxysilane
asset: workplace-exposure-limits
title: "Dimethylethoxysilane — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "14857342 | | Dimethylethoxysilane | 0.5 | 2.1 | | 1.5 | 6.4"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Dimethylethoxysilane"
pel_ppm: "0.5"
pel_mgm3: "2.1"
stel_ppm: "1.5"
stel_mgm3: "6.4"
verified: true
---
**Substance:** Dimethylethoxysilane

**PEL (ppm):** 0.5

**PEL (mg/m³):** 2.1

**STEL (ppm):** 1.5

**STEL (mg/m³):** 6.4

> 14857342 | | Dimethylethoxysilane | 0.5 | 2.1 | | 1.5 | 6.4

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