---
title: "Butan-2-ol (78-92-2): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/butan-2-ol-78-92-2/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/butan-2-ol-78-92-2/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/butan-2-ol-78-92-2/
---

Hazard search

# Butan-2-ol

CAS number

78-92-2

Also known as

2-Butanol · 2-Butanol (sec-butyl alcohol) · sec-Butanol · sec-Butyl alcohol · sec-Butyl alcohol (2-butanol) · sec-Butyl alcohol (alcohols combined) · sec-Butyl alcohol (alcohols II)

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 100 ppm |  |
| 8-hour TWA | 308 mg/m³ |  |
| 15-minute STEL | 150 ppm |  |
| 15-minute STEL | 462 mg/m³ |  |

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 72** / VOCs by thermal desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs72.pdf) | Active (pump) | Tenax thermal desorption tube (250mg) |  | [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 | [575-001](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-001) / [575-002](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-002) |
| **MDHS 96** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs96.pdf) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **MDHS 104** / VOCs by solvent desorption and GC / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs104.pdf) | Active (pump) | Charcoal tube (100/50mg) |  | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **NIOSH 1401** / Alcohols by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/1401.pdf) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **NIOSH 1405** / Alcohols by GC-FID / [Method document (opens in a new tab)](http://www.cdc.gov/niosh/docs/2003-154/pdfs/1405.pdf) | Active (pump) | Charcoal tube (100/50mg) | GC-FID | [226-01](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/) |
| **OSHA 5001** / Organic Vapor Sampling Group 2 by GC-FID / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-5001.pdf) | Active (pump) | Set of two Anasorb 747 tubes (400mg & 200mg) | GC-FID | [226-82](https://analyt-mtc.com/catalog/product/skc-anasorb-sorbent-tubes/#part-226-82) / [222-3L-1](https://analyt-mtc.com/catalog/product/skc-gas-and-vapour-sampling-accessories/#part-222-3l-1) |
| **EPA TO-17** / Toxic Organic Compounds by thermal desorption and GC / [Method document (opens in a new tab)](http://www.epa.gov/ttn/amtic/files/ambient/airtox/to-17r.pdf) | Active (pump) | Thermal desorption tube |  | [226-300](https://analyt-mtc.com/catalog/product/skc-thermal-desorption-sorbent-tubes/#part-226-300) |
| **Non-agency** / 2-Butanol by Colorimetric analysis | Direct-reading | Gastec Detector tube |  | [810-115](https://analyt-mtc.com/catalog/product/gastec-colour-gas-detector-tubes/#part-gst-115) |
| **Other** | Passive |  | GC-FID | [575-001](https://analyt-mtc.com/catalog/product/skc-organic-vapour-passive-samplers/#part-575-001) |
| **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/)