Hazard search
Hydrogen sulphide
- CAS number
- 7783-06-4
- Also known as
- Dihydrogen monosulphide · H2S · Sulphuretted hydrogen
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 5 ppm | |
| 8-hour TWA | 7 mg/m³ | |
| 15-minute STEL | 10 ppm | |
| 15-minute STEL | 14 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 6013 Hydrogen sulphide by IC Method document (opens in a new tab) | Active (pump) | Charcoal tube (400/200mg) with PTFE prefilter | IC | |
| OSHA 1008 Hydrogen sulphide by IC Method document (opens in a new tab) | Active (pump) | Coated silica gel tube with treated filter (200/200mg) | IC | 226-177 |
| Non-agency Hydrogen sulphide + sulphur dioxide by Colorimetric analysis | Direct-reading | Gastec Detector Tube | 810-45H | |
| Non-agency Hydrogen sulphide by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-4H 810-4M 810-4L 810-45S | |
| Non-agency Hydrogen sulphide by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-4D | |
| Non-agency 42 | Active (pump) | GC-FPD | 231-10 | |
| Other | Passive | DR | 810-4D |
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)