# Fire Certificates (Special Premises) Regulations (Northern Ireland) 1991, Paragraph 24


In this Schedule—
“liquefied petroleum gas” means commercial butane, commercial propane or any mixture thereof;
“commercial butane” means a hydrocarbon mixture consisting predominantly of butane, butylene or any mixture thereof;
“commercial propane” means a hydrocarbon mixture consisting predominantly of propane, propylene or any mixture thereof;
“highly flammable liquid” means any liquid, liquid solution, emulsion or suspension (other than liquefied petroleum gas or liquefied natural gas) which when tested in the manner specified in Schedule 1 to the Highly Flammable Liquids and Liquefied Petroleum Gases Regulations (Northern Ireland) 1975, gives off a flammable vapour at a temperature of less than 32 degrees Celsius and, when tested in the manner specified in Schedule 2 to those Regulations, supports combustion.

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Source: https://www.legislation.gov.uk/nisr/1991/446/schedule/1/paragraph/24 (the official version)
Page: https://openlegislation.uk/fire-certificates-special-premises-regulations-northern-ireland-1991/schedule-1/paragraph-24
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.