Hazard search
Nitric acid
- CAS number
- 7697-37-2
- Also known as
- Aqua fortis · Nitric acid (see online Passive Sampling Guide)
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 15-minute STEL | 1 ppm | |
| 15-minute STEL | 2.6 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 7903 | Active (pump) | IC | 226-10-03 | |
| 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 165SG Acid mists by IC Method document (opens in a new tab) | Active (pump) | Silica gel tube (400/200mg) | 226-10-03 | |
| OSHA ID 165SG | Active (pump) | IC | 226-10-03 | |
| Non-agency Nitric acid by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-15L 810-80 | |
| Non-agency Nitric acid by Colorimetric analysis | Passive | Gastec Dosi-tube | 810-14D 810-17D | |
| Other | Passive | DR | 810-17D 810-14D |
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)