---
type: threshold
id: sodium-hydroxide
asset: workplace-exposure-limits
title: "Sodium hydroxide — 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: "Sodium hydroxide | 1310-73-2 | - | 2 | - |"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "Sodium hydroxide"
cas_number: "1310-73-2"
pel_mgm3: "2"
verified: true
---
**Substance:** Sodium hydroxide

**CAS No.:** 1310-73-2

**PEL (mg/m³):** 2

> Sodium hydroxide | 1310-73-2 | - | 2 | - |

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