# Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006 (Text with EEA relevance), Division 3.2.3.3.1

Extent: E+W+S+N.I.

In order to make use of all available data for purposes of classifying the skin corrosion/irritation hazards of mixtures, the following assumption has been made and is applied where appropriate in the tiered approach:
The ‘ relevant ingredients ’ of a mixture are those which are present in concentrations ≥ 1 % (w/w for solids, liquids, dusts, mists and vapours and v/v for gases), unless there is a presumption (e.g., in the case of skin corrosive ingredients) that an ingredient present at a concentration < 1 % can still be relevant for classifying the mixture for skin corrosion/irritation.

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Source: https://www.legislation.gov.uk/eur/2008/1272/annex/I/division/3/division/3.2/division/3.2.3/division/3.2.3.3/division/3.2.3.3.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-1272/annex-I/division-3/division-3.2/division-3.2.3/division-3.2.3.3/division-3.2.3.3.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.