EntityQ748698· pop 10· linked from 358 articlesfire classesSign in to savesystem of categorizing fires to determine suitable extinguishing agentsConnectionscarbon dioxideEntityUnited StatesCountryEuropeEntityAustraliaCountryfireEntityhydrogenEntitycopperEntityPuerto RicoConceptelectricityEntitypaperEntitylithiumEntitysodiumEntitymetalEntitypotassiumEntitymagnesiumEntitypetroleumEntitywoodEntitygasEntitytitaniumEntityInternational Standard Book NumberEntityCategoriesClassification systemsFirefighting