# Chemicals (Hazard Information and Packaging) Regulations (Northern Ireland) 1993, Paragraph 3


The equilibrium methods referred to in paragraph 1(a) are those defined in the following standards:—
(a) International Standards ISO 1516 and ISO 3680 (which show whether or not a liquid is classified on the basis of flash point as extremely flammable, highly flammable or flammable);
(b) International Standards ISO 1523 and ISO 3679 (which provide a value for a flash point).

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Source: https://www.legislation.gov.uk/nisr/1993/412/schedule/1/paragraph/3 (the official version)
Page: https://openlegislation.uk/chemicals-hazard-information-and-packaging-regulations-northern-ireland-1993/schedule-1/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.