Hazard search
Phthalic anhydride
- CAS number
- 85-44-9
- Also known as
- 1,3-Isobenzofurandione
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 4 mg/m³ | |
| 15-minute STEL | 12 mg/m³ |
Notations
- Sen: can cause sensitisation
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 62 Aromatic carboxylic acid anhydrides by HPLC Method document (opens in a new tab) | Active (pump) | 25mm Glass fibre filter with Tenax tube (30/15mg) | HPLC | 225-70A 225-58F 226-35 |
| OSHA 90 Phthalic anhyride by HPLC/UV Method document (opens in a new tab) | Active (pump) | Two coated glass fibre filters in cassette | HPLC-UV | 225-7 225-3LF 225-1 225-9034 |
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)