class b fires造句

Some fire extinguishers contain chemicals designed to fight both Class A and Class B fires.
Some Class B fires ( hydrocarbons, petroleums, and fuels on fire ) cannot be efficiently controlled with water.
It houses a Class B Fire Water Tender / Ladder appliance, call-sign, KK12A1 ( 07-KK-5211 ) and serves Castlecomer and much of North-East Kilkenny.
APW extinguishers are commonly converted into makeshift foam, AFFF, FFFP or commercial detergent is added to the water in a 1 % ratio for class A fires and a 3 6 % ratio for Class B fires.
While water is used to fire Class A fires, using water on a class B fire ( such as a "'grease fire "') is extremely dangerous . or highly pressurized carbon dioxide.
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Class B fires are distinguished from the other fire classes : Class A fires ( " ordinary combustibles " such as wood, paper, or rubber ); Class C fires ( in which the burning material is energized electrical equipment ) and Class D fires ( in which the burning material is combustible metals ).