---
type: threshold
id: hydrazine
asset: workplace-exposure-limits
title: "Hydrazine — 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: "Hydrazine | 302-01-2 | 1 | 1.3 | X |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Hydrazine"
cas_number: "302-01-2"
pel_ppm: "1"
pel_mgm3: "1.3"
verified: true
---
**Substance:** Hydrazine

**CAS No.:** 302-01-2

**PEL (ppm):** 1

**PEL (mg/m³):** 1.3

> Hydrazine | 302-01-2 | 1 | 1.3 | X |

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