---
title: "Acetyl salicylic acid (50-78-2): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/acetyl-salicylic-acid-50-78-2/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/acetyl-salicylic-acid-50-78-2/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/acetyl-salicylic-acid-50-78-2/
---

Hazard search

# Acetyl salicylic acid

CAS number

50-78-2

Also known as

2-Acetoxybenzoic acid · Aspirin · o-Acetylsalicylic acid · ortho-Acetyl salicylic acid

## UK workplace exposure limits

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

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 14/4** / General inhalable or respirable dusts by gravimetric analysis / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs14-4.pdf) | Active (pump) | IOM & GF filter | GR | [225-70A](https://analyt-mtc.com/catalog/product/haz-dust-7204-particulate-monitor/#part-225-70a) / [225-58F](https://analyt-mtc.com/catalog/product/glass-fibre-depth-filters/#part-225-58f) |

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/)