Hazard search
n-Methylpyrrolidinone
- CAS number
- 872-50-4
- Also known as
- 1-Methyl-2-pyrrolidinone · 1-Methyl-2-pyrrolidone · N-Methyl pyrrolidone · N-Methyl-2-pyrrolidinone · N-Methyl-2-pyrrolidone
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 10 ppm | |
| 8-hour TWA | 40 mg/m³ | |
| 15-minute STEL | 20 ppm | |
| 15-minute STEL | 80 mg/m³ |
Notations
- Sk: can be absorbed through the skin
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| MDHS 72 VOCs by thermal desorption and GC Method document (opens in a new tab) | Active (pump) | Tenax thermal desorption tube (250mg) | TD, GC | 226-357 |
| MDHS 80 | Active (pump) | TD, GC | 226-357 | |
| MDHS 80 VOCs by thermal desorption and GC Method document (opens in a new tab) | Passive | Thermal desorption tube with diffusive end caps | 226-357 | |
| MDHS 96 VOCs by solvent desorption and GC Method document (opens in a new tab) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | 226-01 |
| NIOSH 1302 n-Methylpyrrolidinone by GC-NPD /FID Method document (opens in a new tab) | Active (pump) | Charcoal tube (100/50mg) | GC-NPD, FID | 226-01 |
| OSHA PV2043 N-Methyl-2-pyrrolidinone by GC-FID Method document (opens in a new tab) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | 226-01 |
| Non-agency n-Methylpyrrolidinone by Colorimetric analysis | Direct-reading | Gastec Detector Tube | 810-180 | |
| Non-agency VOCs by solvent desorption and GC-FID Method document (opens in a new tab) | Passive | Passive sampler | 575-001 575-002 | |
| Other | Passive | GC-FID | 575-001 575-002 |
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)