---
type: threshold
id: ethyl-sec-amyl-ketone-5-methyl-3-heptanone
asset: workplace-exposure-limits
title: "Ethyl sec-amyl ketone; 5-methyl-3-heptanone — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "541855 | | Ethyl sec-amyl ketone; 5-methyl-3-heptanone | 25 | 130"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Ethyl sec-amyl ketone; 5-methyl-3-heptanone"
pel_ppm: "25"
pel_mgm3: "130"
verified: true
---
**Substance:** Ethyl sec-amyl ketone; 5-methyl-3-heptanone

**PEL (ppm):** 25

**PEL (mg/m³):** 130

> 541855 | | Ethyl sec-amyl ketone; 5-methyl-3-heptanone | 25 | 130

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