---
type: threshold
id: tert-butyl-chromate-di-tert-butyl-chromate-as-cro-3
asset: workplace-exposure-limits
title: "tert-Butyl chromate; di-tert-butyl Chromate, as CrO $3 — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "1189851 | S | tert-Butyl chromate; di-tert-butyl Chromate, as CrO $3 | -- | 0.1 | C"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "tert-Butyl chromate; di-tert-butyl Chromate, as CrO $3"
pel_mgm3: "0.1"
ceiling: "C"
verified: true
---
**Substance:** tert-Butyl chromate; di-tert-butyl Chromate, as CrO $3

**PEL (mg/m³):** 0.1

**Ceiling:** C

> 1189851 | S | tert-Butyl chromate; di-tert-butyl Chromate, as CrO $3 | -- | 0.1 | C

Source: <https://www.dir.ca.gov/title8/5155.html>