Reference Source

1,4-Dichloro-2-butene

For 1,4-Dichloro-2-butene, pel (ppm) is 0.005; pel (mg/m³) is 0.025, verified against its source on 2026-08-05.

Substance
1,4-Dichloro-2-butene
PEL (ppm)
0.005
PEL (mg/m³)
0.025
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

764410 | S | 1,4-Dichloro-2-butene | 0.005 | 0.025

— dir.ca.gov, retrieved 2026-08-05

Source

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.