---
type: threshold
id: pentane
asset: workplace-exposure-limits
title: "Pentane — 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: "Pentane | 109-66-0 | 1000 | 2950 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Pentane"
cas_number: "109-66-0"
pel_ppm: "1000"
pel_mgm3: "2950"
verified: true
---
**Substance:** Pentane

**CAS No.:** 109-66-0

**PEL (ppm):** 1000

**PEL (mg/m³):** 2950

> Pentane | 109-66-0 | 1000 | 2950 | - |

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