---
title: "Cyanide (57-12-5): exposure limits and sampling — Analyt-MTC"
url: https://analyt-mtc.com/tools/hazard-search/cyanide-57-12-5/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/cyanide-57-12-5/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/cyanide-57-12-5/
---

Hazard search

# Cyanide

CAS number

57-12-5

Also known as

Cyanide (as Cn) · Cyanides (except HCN, cyanogen & cyanogen chloride · Cyanides, aerosol & gas

## UK workplace exposure limits

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

### Notations

-   Sk: can be absorbed through the skin

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 7904** / Cyanides by ISE / [Method document (opens in a new tab)](https://www.cdc.gov/niosh/docs/2003-154/pdfs/7904.pdf) | Active (pump) | 0.8µm PVC filter with fritted midget impinger | ISE | [225-2LF](https://analyt-mtc.com/catalog/product/sureseal-cassette-blanks/#part-225-2lf) / [225-36-2](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-2) / [225-22](https://analyt-mtc.com/catalog/product/biosampler/#part-225-22) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) / [225-17-32](https://analyt-mtc.com/catalog/product/ptfe-polytetrafluoroethylene-filters/#part-225-17-32) |
| **OSHA ID 120** | Active (pump) |  | ISE | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-36-2](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-2) / [225-22](https://analyt-mtc.com/catalog/product/biosampler/#part-225-22) / [225-5](https://analyt-mtc.com/catalog/product/disposable-parallel-particle-impactors/#part-225-5) / [225-2902](https://analyt-mtc.com/catalog/product/filter-supports/#part-225-2902) |
| **OSHA ID-120** / Cyanide by ISE / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id120.pdf) | Active (pump) | 37mm MCE filter with midget impinger |  | [225-5](https://analyt-mtc.com/catalog/product/disposable-parallel-particle-impactors/#part-225-5) / [225-2902](https://analyt-mtc.com/catalog/product/filter-supports/#part-225-2902) / [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) / [225-36-2](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-2) / [225-22](https://analyt-mtc.com/catalog/product/biosampler/#part-225-22) |

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/)