---
title: "p-Aramid (respirable fibres) (26125-61-1): sampling methods"
url: https://analyt-mtc.com/tools/hazard-search/p-aramid-respirable-fibres-26125-61-1/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/p-aramid-respirable-fibres-26125-61-1/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/p-aramid-respirable-fibres-26125-61-1/
---

Hazard search

# p-Aramid (respirable fibres)

CAS number

26125-61-1

Also known as

Kevlar · para-Aramid fibre · poly-para-Phenylene terephthalamide · Twaron

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.5 ppm |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 87** / Fibres in air by PCM / [Method document (opens in a new tab)](http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs87.pdf) | Active (pump) | Cowled head with gridded MCE filter | PCM | [225-54](https://analyt-mtc.com/catalog/product/asbestos-sampling/#part-225-54) / [225-1913](https://analyt-mtc.com/catalog/product/asbestos-sampling/#part-225-1913) |

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/)