---
title: "2-Nitropropane (79-46-9): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/2-nitropropane-79-46-9/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/2-nitropropane-79-46-9/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/2-nitropropane-79-46-9/
---

Hazard search

# 2-Nitropropane

CAS number

79-46-9

Also known as

2-NP · Dimethylnitromethane · Isonitropropane · sec-Nitropropane · β-Nitropropane

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 5 ppm |  |
| 8-hour TWA | 18 mg/m³ |  |

### Notations

-   Carc: carcinogen

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 96** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf) | Active (pump) | Chromosorb 106 tube (100/50mg) | GC-FID | [226-110](https://analyt-mtc.com/catalog/product/skc-chromosorb-sorbent-tubes/#part-226-110) |
| **NIOSH 2528** / 2-Nitropropane by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/2528.pdf) | Active (pump) | Chromosorb 106 tube (100/50mg) | GC-FID | [226-110](https://analyt-mtc.com/catalog/product/skc-chromosorb-sorbent-tubes/#part-226-110) |
| **OSHA 15** / 2-Nitropropane by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-15.pdf) | Active (pump) | Coated Chromosorb 106 tube (100/50mg) |  |  |
| **OSHA 46** / 1- and 2-Nitropropane by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-46.pdf) | Active (pump) | XAD-4 tube (80/40mg) | GC-FID | [226-93](https://analyt-mtc.com/catalog/product/skc-xad-sorbent-tubes/#part-226-93) |
| **Non-agency** / 2-Nitropropane by Colorimetric analysis | Direct-reading | Gastec Pyrotec tube |  | [810-52](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-52) |

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)](https://www.skcltd.com/hazard-search.html); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)