---
title: "Monocrotophos (6923-22-4): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/monocrotophos-6923-22-4/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/monocrotophos-6923-22-4/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/monocrotophos-6923-22-4/
---

Hazard search

# Monocrotophos

CAS number

6923-22-4

Also known as

Dimethyl (E)-1-methyl-2-(methylcarbamoyl) vinyl phosphate · Monocrotophos (Azodrin) · Monocrotophos (Organophosphorus Pesticides)

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 5600** / Organophosphorus pesticides by GC-FPD / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5600-F.pdf) | Active (pump) | OVS-2 tube | GC-FPD | [226-58](https://analyt-mtc.com/catalog/product/skc-osha-versatile-sampler-ovs-tubes/#part-226-58) / [224-29V](https://analyt-mtc.com/catalog/product/skc-gas-and-vapour-sampling-accessories/#part-224-29v) |
| **OSHA PV2045** / Monocrotophos by GC-FPD / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-pv2045.pdf) | Active (pump) | OVS-2 tube | GC-FPD | [226-30-16](https://analyt-mtc.com/catalog/product/skc-osha-versatile-sampler-ovs-tubes/#part-226-30-16) |

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/)