• Introduction to Fire Extinguishers Selection

    Portable fire extinguisher is the very first line defense against small fire. We can easily recognize its look while we walk through the plant site or construction inside it. But the question is "Can those fire extinguishers used to put out any type of fire?"


    Of course they can't. They could only be used for type of passion as described on its label. Never use the extinguisher for any fire besides that which are explained on the tag.


    Type of fire extinguishers


    To choose proper types, select based on types of flames:


    Class A are acceptable for ordinary combustible materials such as wood, paper, fabric, rubber and most plastics. The numerical score for this kind is 2-A. It means that the extinguisher can extinguish fire as much as 2-1/2 gallon water on ordinary combustible materials.


    Class B are acceptable for fire involving flammable or combustible liquids and gases, including gasoline, kerosene, fuel oil and dirt. The numerical rating for this type of extinguisher is 10-B, which means the extinguisher can decrease fire of area round 10 square feet.

    Class C are suitable for fire between all electrical-energized equipments, like valves, breaker, wiring and circuit breakers. The numerical code for this type of extinguisher is C, which means not perceptible extinguisher agent.


    Introduction to Fire Extinguishers Selection


    Class D are devoted only for fires that involve combustible metal like magnesium, magnesium, potassium and sodium. These metals are generally found in laboratory. This extinguisher type does not have any numerical rating.


    Besides the aforementioned types, a multi purposes fire extinguisher is also available. An example of it is class A, B, C extinguishers and is suggested for used inside construction where various kinds of fires struck.


    Chemical contents of extinguishers


    Each extinguisher type contains different extinguisher broker. Lets speak one by a single of compound contents of extinguishers.

    Water. Water extinguisher and air-pressurized water is just suitable for Class A extinguisher. Water extinguishers are full of water and pressurized oxygen. Never utilize water purification for extinguish fire involving electric fires or class D fires! It will not put out the flames, it will create the fires spreading and getting larger!


    Foam or powder. Fire extinguishers, that can be full of powder or foam and pressurized with nitrogen, is usually called by dry chemical extinguishers. Dry chemical fire extinguishers can be found in BC form and ABC kind. BC kind compound is sodium bicarbonate or potassium bicarbonate, which can be mildly corrosive. ABC type is filled with monoammonium phospahate, and it is a sticky yellow powder and may damage electrical appliances. Dry chemical extinguishers are suitable for class A, B and C fires.


    Carbon dioxide (CO2). Carbon dioxide extinguishers are suitable for class B and C fires. This sort of extinguisher is best implemented on electric fires.


    Choosing the suitable fire extinguishers are extremely basic in order to put out little fire in the plant site and building within. Remember, all fire extinguishers are not suitable for all fire types. Make the best options to supply best fire protection. Find out more information click a&j fire extinguisher

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