---
type: threshold
id: ethyl-butyl-ketone-3-heptanone
asset: workplace-exposure-limits
title: "Ethyl butyl ketone (3-Heptanone) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1
source_quote: "Ethyl butyl ketone (3-Heptanone) | 106-35-4 | 50 | 230 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Ethyl butyl ketone (3-Heptanone)"
cas_number: "106-35-4"
pel_ppm: "50"
pel_mgm3: "230"
verified: true
---
**Substance:** Ethyl butyl ketone (3-Heptanone)

**CAS No.:** 106-35-4

**PEL (ppm):** 50

**PEL (mg/m³):** 230

> Ethyl butyl ketone (3-Heptanone) | 106-35-4 | 50 | 230 | - |

Source: <https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1000TableZ1>