---
title: "p-Toluenesulphonic acid (104-15-4): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/p-toluenesulphonic-acid-104-15-4/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/p-toluenesulphonic-acid-104-15-4/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/p-toluenesulphonic-acid-104-15-4/
---

Hazard search

# p-Toluenesulphonic acid

CAS number

104-15-4

Also known as

4-Methylbenzenesulphonic acid · para-Toluenesulphonic acid · Tosic acid

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 5043** / p-Toluenesulphonic acid by HPLC/UV / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/5043.pdf) | Active (pump) | 13mm glass fibre filter in Swinnex cassette | HPLC-UV | [225-16](https://analyt-mtc.com/catalog/product/glass-fibre-depth-filters/#part-225-16) / [225-32](https://analyt-mtc.com/catalog/product/cassette-and-filter-holders/#part-225-32) |

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/)