---
title: "Chlorosulphonic acid (7790-94-5): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/chlorosulphonic-acid-7790-94-5/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/chlorosulphonic-acid-7790-94-5/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/chlorosulphonic-acid-7790-94-5/
---

Hazard search

# Chlorosulphonic acid

CAS number

7790-94-5

Also known as

Sulfuric chlorohydrin

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 1 mg/m³ |  |

### Notations

-   Sk: can be absorbed through the skin

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **OSHA ID-165SG** / Acid mists by IC / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id165sg.pdf) | Active (pump) | Silica gel tube (400/200mg) |  | [226-10-03](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-10-03) |

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)