HOW TO EXTINGUISH SMALL FIRES Class A - Extinguish ordinary combustibles by cooling the material below its ignition temperature and soaking the fibers to prevent re-ignition. Use pressurized water, foam or multipurpose(ABC-rated) dry chemical extinguishers. DO NOT USE carbon dioxide or ordinary (BC-rated) dry chemical extinguishers on Class A fires.
NOTE: Multipurpose (ABC-rated)chemical extinguishers leave a residue that can harm sensitive equipment, such as computers and other electronic equipment. Because of this, carbon dioxide or halon extinguishers are preferred in these instances because they leave very little residue. ABC dry powder residue is mildly corrosive to many metals. . |
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HOW TO IDENTIFY THE PROPER FIRE EXTINGUISHER All ratings are shown on the extinguisher faceplate. Some extinguishers are marked with multiple ratings such as AB, BC and ABC. These extinguishers are capable of putting out more than one class of fire. Class A and B extinguishers carry a numerical rating that indicates how large a fire an experienced person can safely put out with that extinguisher. Class C extinguishers have only a letter rating to indicate that the extinguishing agent will not conduct electrical current. Class C extinguishers must also carry a Class A or B rating.
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Your method of escape is known
You know how to use an extinguisher
You have the correct extinguisher for the job
The extinguisher is fully charged and can extinguish the fire
| HOW TO USE A PORTABLE FIRE EXTINGUISHER | ||
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| Remember the acronym, "P.A.S.S."-- | ||
| P | ......Pull the Pin. |  |
| A | ......Aim extinguisher nozzle at the base of the flames. | |
| S | ......Squeeze trigger while holding the extinguisher upright. | |
| S | ......Sweep the extinguisher from side to side, covering the area of the fire with the extinguishing agent. | |
AM I TRAINED TO USE A FIRE EXTINGUISHER
IS MY SAFETY IN DANGER
Class B - Extinguish flammable liquids, greases or gases by removing the oxygen, preventing the vapors from reaching the ignition source or inhibiting the chemical chain reaction. Foam, carbon dioxide, ordinary (BC-rated) dry chemical, multipurpose dry chemical, and halon extinguishers may be used to fight Class B fires.
Class C - Extinguish energized electrical equipment by using an extinguishing agent that is not capable of conducting electrical currents. Carbon dioxide, ordinary (BC-rated) dry chemical, multipurpose dry chemical and halon* fire extinguishers may be used to fight Class C fires.