---
title: "Sodium azide (26628-22-8): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/sodium-azide-26628-22-8/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/sodium-azide-26628-22-8/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/sodium-azide-26628-22-8/
---

Hazard search

# Sodium azide

CAS number

26628-22-8

Also known as

Azium · Sodium azide (as NaN3)

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.1 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **OSHA ID 211** | Active (pump) |  | IC-UV | [226-55](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-55) / [225-5-37-P](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-5-37-p) / [225-2LF](https://analyt-mtc.com/catalog/product/sureseal-cassette-blanks/#part-225-2lf) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **OSHA ID-211** / Azides by IC / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id211.pdf) | Active (pump) | Coated silica gel tube (150/75mg) with prefilter | IC-UV | [226-55](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-55) / 225-8-01 / [225-23](https://analyt-mtc.com/catalog/product/filter-supports/#part-225-23) / [225-2LF](https://analyt-mtc.com/catalog/product/sureseal-cassette-blanks/#part-225-2lf) / [225-5-37-P](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-5-37-p) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |

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/)