---
title: "Isoflurane (26675-46-7): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/isoflurane-26675-46-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/isoflurane-26675-46-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/isoflurane-26675-46-7/
---

Hazard search

# Isoflurane

CAS number

26675-46-7

Also known as

1-Chlor-2,2,2-trifluorethyl-difluormethylether · Isoflurane (see online Passive Sampling Guide)

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 50 ppm |  |
| 8-hour TWA | 383 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 80** | Active (pump) |  | GC-ECD | [226-357](https://analyt-mtc.com/catalog/product/skc-tenax-sorbent-tubes/#part-226-357) |
| **MDHS 88** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs88.pdf) | Passive | Passive sampler | GC-FID | [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |
| **OSHA 103** / Enflurane, Halothane & Isoflurane by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-103.pdf) | Active (pump) | Anasorb 747 tube (140/70mg) | GC-FID | [226-81A](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/#part-226-81a) |
| **Other** | Passive |  | GC-FID | [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |

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/)