---
type: threshold
id: methyl-propyl-ketone-2-pentanone
asset: workplace-exposure-limits
title: "Methyl propyl ketone; 2-pentanone — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "107879 | | Methyl propyl ketone; 2-pentanone | 200 | 700 | | 250 | 875"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Methyl propyl ketone; 2-pentanone"
pel_ppm: "200"
pel_mgm3: "700"
stel_ppm: "250"
stel_mgm3: "875"
verified: true
---
**Substance:** Methyl propyl ketone; 2-pentanone

**PEL (ppm):** 200

**PEL (mg/m³):** 700

**STEL (ppm):** 250

**STEL (mg/m³):** 875

> 107879 | | Methyl propyl ketone; 2-pentanone | 200 | 700 | | 250 | 875

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