---
title: "Phosphine (7803-51-2): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/phosphine-7803-51-2/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/phosphine-7803-51-2/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/phosphine-7803-51-2/
---

Hazard search

# Phosphine

CAS number

7803-51-2

Also known as

Hydrogen phosphide · Phosphorus trihydride

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.1 ppm |  |
| 8-hour TWA | 0.14 mg/m³ |  |
| 15-minute STEL | 0.2 ppm |  |
| 15-minute STEL | 0.28 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 6002** / Phosphine by UV-VIS / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/6002.pdf) | Active (pump) | Coated silica gel tube (300/150mg) | UV-VIS | [226-165A](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-165a) / [224-29B](https://analyt-mtc.com/catalog/product/skc-gas-and-vapour-sampling-accessories/#part-224-29b) |
| **OSHA 1003** / Phosphine by ICP -AES / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-1003.pdf) | Active (pump) | Coated filter in preloaded cassette | ICP-AES | [225-9018](https://analyt-mtc.com/catalog/product/skc-coated-treated-filters/#part-225-9018) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **Non-agency** / Phosphine by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-7](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-7) |

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/)