---
title: "Colophony (8050-09-7): exposure limits and sampling"
url: https://analyt-mtc.com/tools/hazard-search/colophony-8050-09-7/
lang: en
alternates:
  en: https://analyt-mtc.com/tools/hazard-search/colophony-8050-09-7/
  de: https://analyt-mtc.com/de/tools/gefahrstoffsuche/colophony-8050-09-7/
---

Hazard search

# Colophony

CAS number

8050-09-7

Also known as

Gum rosin · Rosin · Solder flux fume · Solder fume

## UK workplace exposure limits

| Limit | Value | Applies to |
| --- | --- | --- |
| 8-hour TWA | 0.05 ppm |  |
| 15-minute STEL | 0.15 ppm |  |

### Notations

-   Sen: can cause sensitisation

## Sampling methods

| Method | Sampling | Medium | Analysis | Part numbers |
| --- | --- | --- | --- | --- |
| **MDHS 83/3** / Resin acids in rosin (colophony) by GC-FID / [Method document (opens in a new tab)](https://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs83-3.pdf) | Active (pump) | MCE Filter or SWINNEX Kit | GC-FID | [225-8050](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-8050) / 225-8050K |
| **OSHA 206** / Metal & metalloid particulates from solder operations by ICP / [Method document (opens in a new tab)](https://www.osha.gov/sites/default/files/methods/osha-id206.pdf) | Active (pump) | 0.8µm MCE filter in 37mm cassette |  | [225-3-01](https://analyt-mtc.com/catalog/product/mixed-cellulose-ester-membrane-filters/#part-225-3-01) / [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); [SKC Inc. (USA), Sampling Guides, used with SKC's permission (opens in a new tab)](https://international.skcinc.com/sampling-guides/)