Hazard search
Nitric oxide
- CAS number
- 10102-43-9
- Also known as
- Nitrogen monoxide · Nitrogen oxide · Nitrogen oxides · NO
UK workplace exposure limits
| Limit | Value | Applies to |
|---|---|---|
| 8-hour TWA | 2 (25*) ppm | |
| 8-hour TWA | 2.5 (30 mg/m³ |
Sampling methods
| Method | Sampling | Medium | Analysis | Part numbers |
|---|---|---|---|---|
| NIOSH 6014 Nitric oxide & Nitrogen dioxide by VIS - MODIFICATIONS TO METHOD REQUIRED - CONTACT SKC Method document (opens in a new tab) | Active (pump) | Set of two molecular sieve tubes (400mg) with oxidiser tube (800mg) | VAS | 226-40A 226-182 226-182A |
| OSHA ID-182 Nitrogen dioxide by IC Method document (opens in a new tab) | Active (pump) | Set of two molecular sieve tubes (400mg) with oxidiser tube (800mg) | IC | 226-40A 226-182 226-182A |
| OSHA ID-190 Nitric oxide by IC - MODIFICATIONS TO METHOD REQUIRED - CONTACT SKC Method document (opens in a new tab) | Active (pump) | Set of two molecular sieve tubes (400mg) with oxidiser tube (800mg) | IC | 226-40A 226-182 226-182A |
| Non-agency Nitrogen oxide by Colorimetric analysis | Direct-reading | Gastec detector tube | 810-10 | |
| Non-agency 59 | Active (pump) | IC | 226-40A 226-182 226-182A |
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)