---
type: threshold
id: mdi-see-methylene-bis-phenylisocyanate
asset: workplace-exposure-limits
title: "MDI; see Methylene bis(phenylisocyanate) — US workplace chemical exposure limits: federal OSHA vs Cal/OSHA, side by side"
sources:
  - https://www.dir.ca.gov/title8/5155.html
source_quote: "101688 | | MDI; see Methylene bis(phenylisocyanate)"
generated: true
harvested: 2026-08-05
stale_after: 2027-08-05
substance: "MDI; see Methylene bis(phenylisocyanate)"
verified: true
---
**Substance:** MDI; see Methylene bis(phenylisocyanate)

> 101688 | | MDI; see Methylene bis(phenylisocyanate)

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