Hazard search
4,4'-Methylenedianiline
- CAS number
- 101-77-9
- Also known as
- 4,4'-Diaminodiphenylmethane · 4,4'-Methylenebisbenzeneamine · 4,4'-Methylenedianiline (MDA) · Diphenylmethanediamine · MDA
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 0.01 ppm | |
| 8-hour TWA | 0.08 mg/m³ |
Notations
- BMGV: a biological monitoring guidance value exists
- Carc: carcinogen
- Sk: can be absorbed through the skin
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 75 Aromatic amines by HPLC Method document (opens in a new tab) | Active (pump) | IOM & glass fibre filter (requires coating) | HPLC | 225-70A 225-58F 225-9004 |
| NIOSH 5029 4,4,-Methylenedianiline by HPLC -UV/ECD Method document (opens in a new tab) | Active (pump) | Coated glass fibre filter in cassette | HPLC-UV | 225-9004 225-1 |
| OSHA 57 4,4'-Methylenedianiline by GC-ECD Method document (opens in a new tab) | Active (pump) | Coated glass fibre filter in cassette | GC-ECD | 225-9004 225-1 |
Methods and limits as published by their agencies and summarised by SKC; check the current method and the limit that applies to you before sampling.
Source: SKC Ltd (UK), Hazard Search, used with SKC's permission (opens in a new tab); SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)