E-Limit

Methylene bisphenyl isocyanate (MDI)

CAS Number

101-68-8

Last Revised

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TWA Limit

0.005 ppm

STEL

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Ceiling Limit

0.01 ppm

Notes & Notations
Basis of B.C. Exposure Limit
Minimize the potential for:
  • Respiratory tract sensitization
  • Lung function impairment
  • Note: There may be other potential health effects; refer to ACGIH TLV Documentation and other relevant references.
IDLH:

75 mg/m3

 (Source: NIOSH)
If the substance you are searching has an entry that contains a size-selective fraction, form, or work activity, you should perform an additional search to confirm if other exposure limits may apply.

Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.