# 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 2.6.4.2: In the case of mixtures containing known flammable liquids in defined concentrations, although they may contain non-volatile components e.g. polymers, additives, the flash point need not be determined experimentally if the calculated flash point of the mixture, using the method given in 2.6.4.3 below, is at least 5 °C greater than the relevant classification criterion and provided that:

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

(a) the composition of the mixture is accurately known (if the material has a specified range of composition, the composition with the lowest calculated flash point shall be selected for assessment);
(b) the lower explosion limit of each component is known (an appropriate correlation has to be applied when these data are extrapolated to other temperatures than test conditions) as well as a method for calculating the lower explosion limit of the mixture;
(c) the temperature dependence of the saturated vapour pressure and of the activity coefficient is known for each component as present in the mixture;
(d) the liquid phase is homogeneous.

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Source: https://www.legislation.gov.uk/eur/2008/1272/annex/I/division/2/division/2.6/division/2.6.4/division/2.6.4.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-1272/annex-I/division-2/division-2.6/division-2.6.4/division-2.6.4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.