# 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 2.7.2.3: A flammable solid shall be classified in one of the two categories for this class using Method N.1 as described in 33.2.1 of the UN RTDG, Manual of Tests and Criteria in accordance with Table 2.7.1:

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

Table 2.7.1
Criteria for flammable solids
Category
Criteria
1
Burning rate test
Substances and mixtures other than metal powders:
(a) wetted zone does not stop fire and
(b) burning time < 45 seconds or burning rate > 2,2 mm/s
Metal powders
burning time ≤ 5 minutes
2
Burning rate test
Substances and mixtures other than metal powders:
(a) wetted zone stops the fire for at least 4 minutes and
(b) burning time < 45 seconds or burning rate > 2,2 mm/s
Metal powders
burning time > 5 minutes and ≤ 10 minutes

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Source: https://www.legislation.gov.uk/eur/2008/1272/annex/I/division/2/division/2.7/division/2.7.2/division/2.7.2.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-1272/annex-I/division-2/division-2.7/division-2.7.2/division-2.7.2.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.