---
title: "m-Phosphoric acid (37267-86-0): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/m-phosphoric-acid-37267-86-0/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/m-phosphoric-acid-37267-86-0/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/m-phosphoric-acid-37267-86-0/
---

Hazard search

# m-Phosphoric acid

CAS number

37267-86-0

Also known as

meta-phosphoric acid

## UK workplace exposure limits

Our data hold no UK limit for this substance.

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **NIOSH 7903** / Inorganic acids by IC . Note: This method is considered Historical and its use is no longer recommended. / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/7903.pdf) | Active (pump) | Silica gel tube (400/200mg) |  | [226-10-03](https://analyt-mtc.com/catalog/product/skc-silica-gel-sorbent-tubes/#part-226-10-03) |

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)