---
type: threshold
id: naphtha-coal-tar
asset: workplace-exposure-limits
title: "Naphtha (Coal tar) — 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: "Naphtha (Coal tar) | 8030-30-6 | 100 | 400 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Naphtha (Coal tar)"
cas_number: "8030-30-6"
pel_ppm: "100"
pel_mgm3: "400"
verified: true
---
**Substance:** Naphtha (Coal tar)

**CAS No.:** 8030-30-6

**PEL (ppm):** 100

**PEL (mg/m³):** 400

> Naphtha (Coal tar) | 8030-30-6 | 100 | 400 | - |

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