Hazard search
2,4-Dichlorophenoxyacetic acid
- CAS number
- 94-75-7
- Also known as
- 2,4-D · 2,4-D (2,4-dichlorophenoxyacetic acid) · 2,4-D (ISO) · 2,4-D acid · 2,4-Dichlorophenoxyacetic acid (2,4-D) · Hedonal · Trinoxol
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 10 mg/m³ | |
| 15-minute STEL | 20 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 5001 2,4-D by HPLC/UV Method document (opens in a new tab) | Active (pump) | 37mm Glass fibre filter in cassette | HPLC-UV | 225-709 225-1 225-706 |
| NIOSH 5602 Chlorinated & organonitrogen herbicides Iair sampling) by GC-ECD Method document (opens in a new tab) | Active (pump) | XAD-2 OVS-2 tube (270/140 mg) | GC-ECD | 226-58 224-29V |
| NIOSH 9201 Chlorinated & organonitrogen herbicides (patch) by GC-ECD Method document (opens in a new tab) | Dermal | Dermal PUF Patch | ||
| ASTM D4861-23 Pesticides and Polychlorinated Biphenyls in Air Method document (opens in a new tab) | Active (pump) | Low Volume PUF Tube | 226-92 |
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)