# The Gas Appliances (Safety) Regulations 1992, Paragraph 3.1.8


All pressurised parts of an appliance must withstand the mechanical and thermal stresses to which they are subjected without any deformation affecting safety.

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Source: https://www.legislation.gov.uk/uksi/1992/711/schedule/3/paragraph/3.1.8 (the official version)
Page: https://openlegislation.uk/gas-appliances-safety-regulations-1992/schedule-3/paragraph-3.1.8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.