---
title: "Barium sulphate (inhalable dust) (7727-43-7) — Analyt-MTC"
url: https://analyt-mtc.com/tools/hazard-search/barium-sulphate-inhalable-dust-7727-43-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/barium-sulphate-inhalable-dust-7727-43-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/barium-sulphate-inhalable-dust-7727-43-7/
---

Hazard search

# Barium sulphate (inhalable dust)

CAS number

7727-43-7

Also known as

Artificial barite · Barium sulfate · Barium sulfate (total dust) · Barium sulphate (respirable dust) · Blanc fixe

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 10 mg/m³ | Barium sulphate (inhalable dust) |
| 8-hour TWA | 4 mg/m³ | Barium sulphate (respirable dust) |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 14/4** / General inhalable or respirable dusts by gravimetric analysis (respirable) / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs14-4.pdf) | Active (pump) | IOM & foam (or cyclone) with GF filter | GR | [225-70A](https://analyt-mtc.com/catalog/product/haz-dust-7204-particulate-monitor/#part-225-70a) / [225-772](https://analyt-mtc.com/catalog/product/iom-sampler/#part-225-772) / [225-69](https://analyt-mtc.com/catalog/product/plastic-cyclone/#part-225-69) / [225-58F](https://analyt-mtc.com/catalog/product/glass-fibre-depth-filters/#part-225-58f) |
| **MDHS 14/4** / General inhalable or respirable dusts by gravimetric analysis (total inhalable) / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs14-4.pdf) | Active (pump) | IOM with 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) |
| **OSHA 204** / Workplace Substances by XRF / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/id204.pdf) | Active (pump) | 0.8µm MCE filter in cassette with cyclone |  | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-105](https://analyt-mtc.com/catalog/product/gs-1-respirable-dust-cyclone/#part-225-105) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **OSHA ID 121** | Active (pump) |  | AA or AES | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **OSHA ID-121** / Metal & metalloid particulates by AAS /AES / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id121.pdf) | Active (pump) | 5µm PVC filter in cassette |  | [225-802](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-802) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |

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/)