Methylenedianiline
For Methylenedianiline, cfr section is 1910.1050; action level is 5 ppb as an eight (8)-hour time-weighted average; pel is ten parts per billion (10 ppb) as an 8-hour time-weighted average; STEL of 100 ppb; surveillance trigger is Employees exposed at or above the action level for 30 or more days per year; employees who are subject to dermal exposure to MDA for 15 or more days per year; employees who have been exposed in an emergency situation; exam frequency is within 150 days of the effective date or before the time of initial assignment; at least annually following the initial examination, recorded from its source on 2026-08-12.
- Substance
- Methylenedianiline verified
- CFR section
- 1910.1050 verified
- Action level
- 5 ppb as an eight (8)-hour time-weighted average
- PEL
- ten parts per billion (10 ppb) as an 8-hour time-weighted average; STEL of 100 ppb
- Surveillance trigger
- Employees exposed at or above the action level for 30 or more days per year; employees who are subject to dermal exposure to MDA for 15 or more days per year; employees who have been exposed in an emergency situation
- Exam frequency
- within 150 days of the effective date or before the time of initial assignment; at least annually following the initial examination
- Record retention
- exposure records: at least 30 years; medical records: at least the duration of employment plus 30 years
What the source says
1910.1050 Methylenedianiline." /> 29 CFR §
— law.cornell.edu, retrieved 2026-08-12
Source
- law.cornell.eduhttps://www.law.cornell.edu/cfr/text/29/1910.1050