---
title: "Phosphorus trichloride (7719-12-2): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/phosphorus-trichloride-7719-12-2/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/phosphorus-trichloride-7719-12-2/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/phosphorus-trichloride-7719-12-2/
---

Hazard search

# Phosphorus trichloride

CAS number

7719-12-2

Also known as

Trichlorophosphine

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.2 ppm |  |
| 8-hour TWA | 1.1 mg/m³ |  |
| 15-minute STEL | 0.5 ppm |  |
| 15-minute STEL | 2.9 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 6402** / Phosphorus trichloride by VIS / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/6402.pdf) | Active (pump) | Fritted midget impinger | VAS | [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) |
| **OSHA CSI** | Active (pump) |  | IC | [225-36-2](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-2) / [225-36-5](https://analyt-mtc.com/catalog/product/skc-impingers/#part-225-36-5) / [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/)