---
title: "Hydrogen sulphide (7783-06-4): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/hydrogen-sulphide-7783-06-4/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/hydrogen-sulphide-7783-06-4/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/hydrogen-sulphide-7783-06-4/
---

Hazard search

# Hydrogen sulphide

CAS number

7783-06-4

Also known as

Dihydrogen monosulphide · H2S · Sulphuretted hydrogen

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 5 ppm |  |
| 8-hour TWA | 7 mg/m³ |  |
| 15-minute STEL | 10 ppm |  |
| 15-minute STEL | 14 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 6013** / Hydrogen sulphide by IC / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/6013.pdf) | Active (pump) | Charcoal tube (400/200mg) with PTFE prefilter | IC |  |
| **OSHA 1008** / Hydrogen sulphide by IC / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-1008.pdf) | Active (pump) | Coated silica gel tube with treated filter (200/200mg) | IC | [226-177](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-177) |
| **Non-agency** / Hydrogen sulphide + sulphur dioxide by Colorimetric analysis | Direct-reading | Gastec Detector Tube |  | [810-45H](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-45h) |
| **Non-agency** / Hydrogen sulphide by Colorimetric analysis | Direct-reading | Gastec detector tube |  | [810-4H](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-4h) / [810-4M](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-4m) / [810-4L](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-4l) / [810-45S](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-45s) |
| **Non-agency** / Hydrogen sulphide by Colorimetric analysis | Passive | Gastec Dosi-tube |  | [810-4D](https://analyt-mtc.com/catalog/product/gastec-passive-dosi-tubes/#part-gst-4d) |
| **Non-agency 42** | Active (pump) |  | GC-FPD | [231-10](https://analyt-mtc.com/catalog/product/skc-tedlar-sample-bags/#part-231-10) |
| **Other** | Passive |  | DR | [810-4D](https://analyt-mtc.com/catalog/product/gastec-passive-dosi-tubes/#part-gst-4d) |

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/)