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Occasionally I've been asked to look into storage quantities of flammable or combustible liquids. This typically comes up in research and development facilities and laboratories, where the quantity of different liquid classifications becomes important. Liquid fires present a different challenge than pyrolysis of solids as the shape of the fire can change quickly and the speed of ignition can be significantly faster than fire growth of solids.  Cabinets and sprinkler protection can contribute to increasing allowable storage quantities, but in order to do so, an evaluation must first be made to the different classifications for the liquids. Many code and standard requirements depend on the classification of a Flammable or Combustible Liquid, such as storage locations, limits in quantity, limits in storage height, grouping, arrangement, whether control areas are necessary, and auxiliary requirements such as secondary containment and sprinkler densities. Where projects are subject to the International Fire Code, Chapter 34 (2003-2009 Editions) or Chapter 57 (2012-2018 Editions) begin to address these limitations and impacts. Where NFPA 30 (Flammable and Combustible Liquids Code) is applied, the entire standard sets precedents for these limitations and impact. This basic tool below is what I use to begin to assess and compile the classes and quantities for flammable and combustible liquids. Entering in only the Flash Point, Boiling Point, and quantity will identify and sum the totals that I can then use to assess against code and standard requirements. TL501 SERIES:
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