---
title: "Ethanethiol (75-08-1): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/ethanethiol-75-08-1/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/ethanethiol-75-08-1/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/ethanethiol-75-08-1/
---

Hazard search

# Ethanethiol

CAS number

75-08-1

Also known as

Ethyl mercaptan · Ethyl mercaptan (mercaptans) · Mercaptoethane · Thioethanol · Thioethyl alcohol

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.5 ppm |  |
| 8-hour TWA | 1.3 mg/m³ |  |
| 15-minute STEL | 2 ppm |  |
| 15-minute STEL | 5.2 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 2542** / Mercaptans by GC-FPD / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/2542.pdf) | Active (pump) | Coated glass fibre filter in cassette | GC-FPD | [225-9007](https://analyt-mtc.com/catalog/product/skc-coated-treated-filters/#part-225-9007) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **Non-agency** / Ethyl mercaptan by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-72](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-72) / [810-72LN](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-72ln) / [810-70](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-70) |

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/)