# The Chemicals (Hazard Information and Packaging) Regulations 1993, Paragraph 1


For the purposes of Part I of this Schedule, preparations which comply with the following conditions shall not be required to be classified as flammable, namely:—
(a) the preparation is not classified as toxic or corrosive;
(b) the preparation is a solution or homogeneous mixture which does not contain nitro-cellulose;
(c) the flash point of the preparation is equal to or greater than 21°C;
(d) in a suitable solvent separation test, the solvent which separates is not more than 3 per cent. of the volume of the preparation; and
(e) the viscosity of the preparation when determined at 23°C in a flow cup conforming to the International Standards Organisation Standard ISO 2431—1984 or British Standard BS3900: Part A6—1986 and having a jet diameter of 6mm is—
(i) in a case where the preparation contains not more than 60 per cent. of a flammable liquid with a flash point of 55°C or less, not less than 40 seconds, or
(ii) in any other case, not less than 60 seconds.

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Source: https://www.legislation.gov.uk/uksi/1993/1746/schedule/3/part/III/paragraph/1 (the official version)
Page: https://openlegislation.uk/chemicals-hazard-information-and-packaging-regulations-1993/schedule-3/part-III/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.