泡沫液体浓缩物的标准分为三类。1类——主要用于一般用途的碳氢化合物火灾；2类-主要用于极性溶剂、含氧燃料和 水溶性燃料和所有1类应用；3类-主要用于飞机救援消防和所有1类应用。本标准指3类水性成膜泡沫（AFFF）液体浓缩物。注:3类成膜氟蛋白（FFFP）泡沫液体浓缩物的要求包含在标准CAN/ULC-S563中。用淡水或海水稀释1%、3%或6%的泡沫浓缩液主要用于飞机救援和消防车（ARFF），但也适用于移动式、便携式和固定式翼型装置，包括泡沫- 喷水灭火系统已被证明适用于满足1类和2类泡沫液体浓缩物标准ULC-S564的要求，用于扑灭涉及普通碳氢化合物易燃液体的火灾。这些要求不取代具有管辖权的当局在立法或法规中规定的要求。

The Standards for foam liquid concentrates are divided into three categories. Category 1 - Primarily for use on general-purpose hydrocarbon fires; Category 2 - Primarily for use on polar solvents, oxygenated fuels, and water-miscible fuels and all Category 1 applications; Category 3 - Primarily for use on aircraft rescue fire fighting and all Category 1 applications. This Standard refers to Category 3 Aqueous Film-Forming Foam (AFFF) Liquid Concentrates. NOTE: The requirements for Category 3 Film-Forming Fluoroprotein (FFFP) Foam Liquid Concentrates are contained in the Standard CAN/ULC-S563. The foam liquid concentrate at 1%, 3% or 6% dilution with fresh or sea water are intended primarily for use in aircraft rescue and firefighting vehicles (ARFF) but are also suitable for use in mobile, portable and fixed airfoam installations, including foam-water sprinkler systems which have been proven suitable to meet the requirements of the Standard for Categories 1 and 2 Foam Liquid Concentrates, ULC-S564, in surface extinguishment of fires involving ordinary hydrocarbon flammable liquids. These requirements do not supersede requirements prescribed in legislation or regulation by the authority having jurisdiction.