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Flammable Liquid

A flammable liquid is a liquid, or mixtures of liquids, or liquids containing solids in solution or suspension (for example, paints, varnishes, lacquers, etc.) which;

  1. give off a flammable vapour at temperatures of not more than 60 °C, closed-cup test, or not more than 65.6 °C, open-cup test, normally referred to as the flash point1 ; or
  2. has a flash point of not more than 93°C2 .

4 Categories of Flammable Liquids

According to the Globally Harmonised System for the classification and labelling of chemicals (GHS) a flammable liquid is classified in one of four categories for this class according to the following;

GHS category Criteria
1 Flash point < 23°C and initial boiling point ≤ 35°C
2 Flash point < 23°C and initial boiling point >35°C
3 Flash point ≥ 23°C and ≤ 60°C
4 Flash point > 60°C and ≤ 93°C



In preparing this definition, we have drawn from various sources including Legislation, Codes, Standards and industry information, research and knowledge.  Like the english language, these definitions may subtly change from time to time. As such these definitions are provided solely on the basis that users will be responsible for making their own assessment of the definition and and are advised to verify all relevant representations, statements and information.