Methyl chloroform; 1,1,1-trichloroethane

For Methyl chloroform; 1,1,1-trichloroethane, pel (ppm) is 350; pel (mg/m³) is 1900; ceiling is 800 ppm; stel (ppm) is 450; stel (mg/m³) is 2450, verified against its source on 2026-08-05.

Substance: Methyl chloroform; 1,1,1-trichloroethane
PEL (ppm): 350
PEL (mg/m³): 1900
Ceiling: 800 ppm
STEL (ppm): 450
STEL (mg/m³): 2450

Sourcedir.ca.gov

Verified2026-08-05

Review by2027-08-05

DatasetUS workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side

What the source says

71556 | | Methyl chloroform; 1,1,1-trichloroethane | 350 | 1900 | 800 ppm | 450 | 2450

— dir.ca.gov, retrieved 2026-08-05

Source

dir.ca.govhttps://www.dir.ca.gov/title8/5155.html

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF concept · full dataset as JSON.