---
type: threshold
id: carbon-black
asset: workplace-exposure-limits
title: "Carbon black — 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: "Carbon black | 1333-86-4 | - | 3.5 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Carbon black"
cas_number: "1333-86-4"
pel_mgm3: "3.5"
verified: true
---
**Substance:** Carbon black

**CAS No.:** 1333-86-4

**PEL (mg/m³):** 3.5

> Carbon black | 1333-86-4 | - | 3.5 | - |

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