Different Classes of Fire Extinguishers

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different classes of fire extinguishers
Different classes of fire extinguishers

Fire extinguisher ratings designed to indicate the different classes of fire extinguishers they should use on fires. Also, give an indication of how effective they will be. Each rating fire expressed a series of numbers and letters that show the fire class and the size that suitable.

Different classes of fire extinguishers classified by different letters and the ranking fire extinguishers may indicate some letters because they used on more than one type of fire. In terms of the size of the fire service used on fires, the number gave an indication of this. Also, the larger the number, the bigger the fire extinguisher that can handle.

Different classes of fire extinguishers and their uses

The numerical ranking part related to firefighting conducted tests to measure their effectiveness. Wooden box test is a test used to measure how big the fire extinguisher can handle. Ranking fire extinguisher 13A, for example, showed that firemen were able to extinguish the fire of 1.3 m. The number on the fire rating is the highly accurate indication of what firefighting can be overcome.

As another example of a numeric value, a test to measure the effectiveness of fire for use on flammable liquids. It refers to the approximate area of fire in square feet that can put out. Certain tests vary with different classes of fire extinguishers. But the basic system to accurately measure the effectiveness of the same Brigade.

It would seem obvious, to think that the number of a fire extinguisher will increase the size of the fire service. This is generally true, but the size is not the only factor that affects the rating number in the fire department. With water fire extinguisher, additives are often blended with water to increase their effectiveness. Therefore, you can have two fire extinguishers that are the same size, but that have the different numerical ranking because it’s wrong one is more effective than others.

UK and US five different classes of fire extinguishers

As already mentioned, the letters used refers to the fire classes that safely used on fire engines. Therefore, we need to see this fire classification first, before looking at the actual ranking Fire Department for different classes of fire extinguishers.

Classification of the United Kingdom and the United States are similar, but there are some differences. Europe and Australia will also use the same classification system as the United Kingdom. The following are the main classification of fires, with the U.S. class in brackets:

Class A fires (also A-class in the US)
There is a fire involving solid materials such as wood, cloth, paper, card, etc.

Class B fires (class B in the US)
It include flammable liquids, including kerosene, gasoline, paint, oil, diesel, etc.

Class C fires (coming under class B in the US)
A separate classification except in the U.S., this category is for gas, including Butane, methane, etc.

Class D fires (class D in the US)
D is the classification for flammable metals or alloys, such as potassium, magnesium or titanium.

Electric fire (class C in the US)
Electrical fires known as the E-class in the United Kingdom.

Fire class F (grade K in the US)
Specifically related to the fires that involve frying fat (fats and oils).

Different classes of fire extinguishers conclusion

Understanding different classes of fire extinguishers and their applications are very important to use the correct fire extinguisher in your workplace. This can be very dangerous to use the wrong type of fire extinguisher on several fires. One of the most obvious examples is the use of water in an electrical fire. For this reason, the proper staff training is important for any staff who asked to use firefighting equipment.