FIRE EXTINGUISHERS USE TYPE SELECTION
DISCLAIMER • As an employee, you are not required to operate a fire extinguisher. • If you do, it is totally your choice. • Be absolutely sure you know how and are total command. • Best advice, when the fire alarm sounds, proceed to evacuate the building.
PURPOSE • Contain small fires to prevent spreading. • Put out small fires. • Delay environmental damage.
CLASSES OF FIRESBased On Fuels • Class A - wood, paper, rags, trash, etc. • Class B - gases and flammable liquids. • Class C - for electrical equipment. • Class D - combustible metals (K, Na, Zn, Al, Ti, etc.).
CLASSES OF EXTINGUISHERS • Classes are based on fire type. • Some classes can be combined. • May be more hazardous to use the wrong class. • Halon - special class for electronics.
HOW THEY WORK • Reduce fuel temperature. • Reduce or eliminate oxygen supply. • Prevent chemical reaction(s).
CONDITIONS • Operator must know how to use them. • Must be in easy reach and in working order. • Extinguisher should match fire type. • Should have adequate contents.
CONDITIONS • Should be located near exits. • User must have an escape route. • Should be spaced no farther apart than 75 feet.
NUMBERS/LETTERS ON EXTINGUISHERS • Class A - A1, A2, A3, Etc. (Relative size). • Class B - 5B, 10B, 20B, Etc. (Area in square feet it will cover).
SAFETY PRECAUTIONS • You have decided you can safely fight the fire. • Make sure your back is to a safe exit. • Stand no closer than 6 to 8 feet from the fire.
OPERATING EXTINGUISHER • Pull the pin. • Aim low at base of fire. • Squeeze the trigger. • Sweep from side to side.