Hazard search
Carbon dioxide
- CAS number
- 124-38-9
- Also known as
- Carbon dioxide (by portable GC) · Carbonic acid gas · CO2 · Dry ice
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 5000 ppm | |
| 8-hour TWA | 9150 mg/m³ | |
| 15-minute STEL | 15000 ppm | |
| 15-minute STEL | 27400 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 6603 Carbon dioxide by portable GC Method document (opens in a new tab) | Active (pump) | Five-layer Sampling Bags | P GC-TCD | 232-01 |
| OSHA ID 172 | Active (pump) | GC-TCD | 253-01 263-01 | |
| OSHA ID-172 | GC | |||
| Non-agency Carbon dioxide by Colorimetric analysis | Direct-reading | Gastec Detector tube | 810-2 | |
| Non-agency Carbon dioxide by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-2D | |
| Other | Passive | DR | 810-2D |
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)