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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.). Flammable liquids are characterised by their ability to emit flammable vapours at relatively low temperatures. Specifically, a flammable liquid;

  1. gives 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 pointAustralian Standard AS 1940 — The storage and handling of flammable and combustible liquids; or
  2. has a flash point of not more than 93°C1.

This low flash point indicates that the liquid can form an ignitable mixture with air under normal environmental conditions, making it a significant fire hazard.

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    Globally Harmonised System for the classification and labelling of chemicals (GHS)

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

 

    Disclaimer

    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.