Hazard search
Benzidine
- CAS number
- 92-87-5
- Also known as
- 4,4'-Biphenyldiamine · Benzidine dyes (dyes, benzidine) · Benzidine-based dyes
UK workplace exposure limits
Our data hold no UK limit for this substance.
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 5013 Benzidine-based dyes by HPLC/UV Method document (opens in a new tab) | Active (pump) | 5µm PTFE filter in cassette | HPLC | 225-17A 225-3LF 225-1 225-17P |
| NIOSH 5509 Benzidine by HPLC/UV Method document (opens in a new tab) | Active (pump) | 13mm glass fibre filter in Swinnex cassette | HPLC-UV | 225-16 225-32 225-1 |
| OSHA 65 Benzidine by GC-ECD Method document (opens in a new tab) | Active (pump) | Coated glass fibre filter in preloaded 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)