Hazard search
Carbon monoxide
- CAS number
- 630-08-0
- Also known as
- Carbon oxide · CO
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 20 ppm | |
| 8-hour TWA | 23 mg/m³ | |
| 15-minute STEL | 100 ppm | |
| 15-minute STEL | 117 mg/m³ |
Notations
- BMGV: a biological monitoring guidance value exists
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| OSHA ID 210 | Active (pump) | GC-DID | 252-01 253-01 262-01 263-01 | |
| OSHA ID-210 Carbon Monoxide in Workplace Atmospheres by GC Method document (opens in a new tab) | Active (pump) | Five-layer Aluminised Sampling Bags | GC | |
| Non-agency Carbon monoxide by Colorimetric analysis | Direct-reading | Gastec Detector tube | 810-1 | |
| Non-agency Carbon monoxide by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-1D 810-1DL | |
| Other | Passive | DR | 810-1D | |
| Other | Passive | DR | 810-1DL |
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)