Port Ludlow Fire & Rescue - plfr.org

Fire Extinguisher Ratings

types

Old Icon Label \| New Label	Classification
	Class A Extinguishers will put out fires in ordinary combustibles, such as wood and paper. The numerical rating for this class of fire extinguisher refers to the amount of water or dry chemical the fire extinguisher holds and the amount of fire it will extinguish.
	Class B Extinguishers should be used on fires involving flammable liquids, such as kitchen grease, gasoline, kerosene, paint, oil, etc. The numerical rating for this class of fire extinguisher states the approximate number of square feet of a flammable liquid fire that a non-expert person can expect to extinguish. NEVER USE WATER ON FIRES INVOLVING FLAMMABLE LIQUIDS
	Class C Extinguishers are suitable for use on fires involving electrical equipment or wires. This class of fire extinguishers does not have a numerical rating. The presence of the letter "C" indicates that the extinguishing agent is non-conductive. NEVER USE WATER ON FIRES INVOLVING ELECTRICAL EQUIPMENT
	Multi-Class Ratings Many extinguishers available today can be used on different types of fires and will be labeled with more than one designator, e.g. A-B, B-C, or A-B-C. Make sure that if you have a multi-purpose extinguisher it is properly labeled.