Hazard search
Hydrogen chloride
- CAS number
- 7647-01-0
- Also known as
- Hydrochloric acid, anhydrous · Hydrogen chloride (gas & aerosol mists) · Hydrogen chloride (hydrochloric acid)
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 1 ppm | |
| 8-hour TWA | 2 mg/m³ | |
| 15-minute STEL | 5 ppm | |
| 15-minute STEL | 8 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 7907 Volatile Acids by IC Method document (opens in a new tab) | Active (pump) | Coated quartz filter and quartz prefilter | IC-CD | 225-9032 225-1 |
| OSHA ID 174SG | Active (pump) | IC | 226-10-03 | |
| OSHA ID-174SG Hydrogen chloride by IC Method document (opens in a new tab) | Active (pump) | Silica gel tube (400/200mg) | IC | 226-10-03 |
| Non-agency Hydrogen chloride by Colorimetric analysis | Active (pump) | Gastec Detector tube | 810-14R 810-14M 810-14L 810-80 810-8HH | |
| Non-agency Hydrogen chloride by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-14D 810-132D | |
| Other | Passive | DR | 810-132D | |
| Other | Passive | DR | 810-14D | |
| Other | Passive | DR | 810-17D |
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)