---
type: threshold
id: isoamyl-alcohol-3-methylbutanol
asset: workplace-exposure-limits
title: "Isoamyl alcohol; 3-methylbutanol — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "123513 | | Isoamyl alcohol; 3-methylbutanol | 100 | 360 | | 125 | 450"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Isoamyl alcohol; 3-methylbutanol"
pel_ppm: "100"
pel_mgm3: "360"
stel_ppm: "125"
stel_mgm3: "450"
verified: true
---
**Substance:** Isoamyl alcohol; 3-methylbutanol

**PEL (ppm):** 100

**PEL (mg/m³):** 360

**STEL (ppm):** 125

**STEL (mg/m³):** 450

> 123513 | | Isoamyl alcohol; 3-methylbutanol | 100 | 360 | | 125 | 450

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