what are the 4 main types of fire extinguishers?
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['Class A extinguishers will put out fires in ordinary combustibles such as wood and paper.', 'Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.']
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ABC Dry Powder Extinguishers are a highly versatile medium for tackling most types of fires. Extremely effective on electrical hazards, flammable liquids and gases. However under BS 5306-8 dry powder fire extinguishers are not suitable indoors.
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A Class K fire extinguisher is used on fires involving cooking media (fats, grease, and oils) in commercial cooking sites such as restaurants. These fire extinguishers work on the principle of saponification.
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Foam fire extinguishers are suitable for use on class A and class B fires but but are used in different ways depending on the type of fire they are being used on. Please note that foam extinguishers should only be used on or near live electrical equipment if they are di-electrically tested.
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['Fire is Fast. There is little time! ... ', 'Fire is Hot. Heat is more threatening than flames. ... ', "Fire is Dark. Fire isn't bright, it's pitch black. ... ", 'Fire is Deadly. Smoke and toxic gases kill more people than flames do. ... ', 'Escape First. ... ', 'Smoke Alarms.']
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The letters stand for the class of fire the extinguisher can be used against: ... For example, 2A means the fire extinguisher is as effective as 2 ½ gallons of water, and so on. The numbers before B and C are a measure of the amount of square feet the fire extinguisher can put out.
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Foam fire extinguishers are suitable for class A and the flammable liquids of class B, though not effective for gaseous fires. They spray a type of foam that expands when it hits the air and blankets the fire.
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There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire.
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A recent development in the types of fire extinguishers is water mist. Also red with white labelling, this type of fire extinguisher looks similar to water extinguishers but has some different uses. In addition to class A, water mist can also be used for class F (cooking fats and oils) fires.
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Many fire extinguishers release a fine powder. The most common is the multipurpose dry chemical type, which is used for Class A, B, and C fires. These contain monoammonium phosphate, which comes out as a yellow powder. ... They often contain sodium bicarbonate (baking soda), which comes out as a white powder.
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There are actually five main types of fires. Fires can be classified in five different ways depending on the agent that fuels them: Class A, Class B, Class C, Class D, and Class K. Each type of fire involves different flammable materials and requires a special approach.
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Powder extinguishers are a good multi-purpose fire extinguisher because they can be used on Class A, B and C fires. They can also be used on fires involving electrical equipment however, they do not cool the fire so it can re-ignite.
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Fire Away Class 5 BC Fire Extinguisher This lightweight, disposable fire extinguisher is the perfect answer for areas that need supplemental protection. Extinguisher is suitable for use on Class B (liquids and gases) and Class C fires (energized electrical equipment).
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['Gas System – FM200. Gas systems are stored as liquid, with nitrogen used to pressurise it. ... ', 'Kitchen Fire Suppression – Chemical Foam (Amerex, Ansul etc) This system is specifically designed for commercial kitchens. ... ', 'Water mist System. ... ', 'Foam Deluge System. ... ', 'Pneumatic Heat Detection Tube.']
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For example, 2A means the fire extinguisher is as effective as 2 ½ gallons of water, and so on. The numbers before B and C are a measure of the amount of square feet the fire extinguisher can put out. For example, a 10:BC fire extinguisher can extinguish a fire over 10 sq ft.
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['Exploding Bomb (Explosive) ... ', 'Flame (Flammable) ... ', 'Flame Over Circle (Oxidizing) ... ', 'Gas Cylinder (Gases Under Pressure) ... ', 'Corrosion. ... ', 'Skull & Crossbones (Acute Toxicity) ... ', 'Health Hazard. ... ', 'Exclamation Mark (Health Hazards)']
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The major categories are heat, smoke, and flame detectors. Within each category are numerous additional specific types. The discussion here will be limited to those most commonly used for building fire detection and alarm activation.