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


Each hazard warning sign shall be in the form of a square set with its sides at an angle of 45°C to the vertical.

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