Hazard search
Methacrylic acid
- CAS number
- 79-41-4
- Also known as
- 2-Methylpropenoic acid · α-Methylacrylic acid
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 20 ppm | |
| 8-hour TWA | 72 mg/m³ | |
| 15-minute STEL | 40 ppm | |
| 15-minute STEL | 143 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| OSHA PV2005 | Active (pump) | HPLC-UV | 226-30-08 | |
| Non-agency SKC Partial Validation based on OSHA PV2005 for Acrylic acid & Methacrylic acid by LC -UV | Active (pump) | Two Anasorb 708 tubes in series (100mg) | 226-30-08 | |
| Non-agency Methacrylic acid by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-81 810-81L | |
| Non-agency 60 | Active (pump) | HPLC-UV | 226-30-08 |
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)