---
title: "Silica, respirable crystalline: exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/silica-respirable-crystalline/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/silica-respirable-crystalline/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/silica-respirable-crystalline/
---

Hazard search

# Silica, respirable crystalline

CAS number

No CAS number

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.1 mg/m³ |  |

### Notations

-   Carc: carcinogen

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 101/2** / Respirable crystalline silica by IR or XRD / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs101.pdf) | Active (pump) | Cyclone with PVC filter |  | [225-69](https://analyt-mtc.com/catalog/product/plastic-cyclone/#part-225-69) / [225-5-25](https://analyt-mtc.com/catalog/product/button-sampler/#part-225-5-25) |
| **NIOSH 7500** / Crystalline silica by XRD / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7500.pdf) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette |  | [225-01-02](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-01-02) / [225-803](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-803) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **NIOSH 7601** / Crystalline silica by VIS / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7601.pdf) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette |  | [225-01-02](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-01-02) / [225-803](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-803) / [225-1](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-1) |
| **NIOSH 7602** / Crystalline silica by IR (KBr pellet) / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7602.pdf) | Active (pump) | Cyclone & 5µm PVC filter in preloaded cassette |  | [225-01-02](https://analyt-mtc.com/catalog/product/aluminium-respirable-dust-cyclone/#part-225-01-02) / [225-803](https://analyt-mtc.com/catalog/product/gla-5000-pvc-membrane-filters/#part-225-803) / [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)