Reference Source

4,4′-Methylene dianiline; MDA (see also Sections 1535 & 5200)

For 4,4′-Methylene dianiline; MDA (see also Sections 1535 & 5200), pel (ppm) is 0.01; pel (mg/m³) is 0.08; stel (ppm) is 0.1; stel (mg/m³) is 0.8, verified against its source on 2026-08-05.

Substance
4,4′-Methylene dianiline; MDA (see also Sections 1535 & 5200)
PEL (ppm)
0.01
PEL (mg/m³)
0.08
STEL (ppm)
0.1
STEL (mg/m³)
0.8
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

101779 | S | 4,4′-Methylene dianiline; MDA (see also Sections 1535 & 5200) | 0.01 | 0.08 | | 0.1 | 0.8

— 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.