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What type of fire extinguisher should you use on each type of fire

Updated on April 13, 2010

Using a fire extinguisher is something that no one wants to experience, because that would mean there is some kind of fire taking place. In the unfortunate event that a fire extinguisher is needed, it is important to know what kind of extinguisher you should use for different kinds of fires.

According to BS EN 3 guidelines, every fire extinguisher needs to be red in colour. However, there is a 5 percent zone allowed that can be colour coded so that you can tell the difference in the contents of a specific fire extinguisher. This plays an important role as there are certain chemicals that should be used to put out certain types of fires. Before going over the contents and coding of the different types of fire extinguishers, it is also important to know the different classifications of fires. The classifications are broken down into the types of materials that are on fire, and are classified by letters ranging from A to F.

CLASS A- Solids. Includes materials such as wood, plastic, and paper.
CLASS B- Flammable Liquids. Examples:Oil, Paraffin, Petrol.
CLASS C- Flammable Gases. Examples:Methane, Butane, Propane.
CLASS D- Metals. Examples:Magnesium, Titanium, Aluminum.
CLASS E- Electrical fires.
CLASS F- Cooking oil and fat. Example:Grease fires.

A red colour coding indicates that the contents of the fire extinguisher is water. These are the cheapest fire extinguishers you will find, and the most popular. However, these fire extinguishers should only be used on Class A fires. Using one of these extinguishers on an electrical fire will only make things worse, and could worsen or be virtually ineffective against other types of fires.

Fire extinguishers coded with a cream colour indicate that it is a foam fire extinguisher. While it is a little more expensive than a water extinguisher, it can also be used on more classes of fires. These extinguishers will be effective against both Class A and B fires, and if mistakenly used on an electrical fire will be much safer than using water.

A fire extinguisher that has a blue colour coding contains dry powder. These types of extinguishers are especially effective against Class B fires, but can be useful to help exterminate fires that fall under Classes A and C as well. It is for this reason a dry powder fire extinguisher is known as a "multi-purpose" extinguisher. Keep in mind that although this can be an effective tool to help put out fires resulting from gas, it is always important to turn off the gas supply prior to trying to put out the fire. Any time the gas supply is not isolated first, it can lead to a dangerous situation. For metal fires that fall into the Class D category, there are special powders available that will be useful in putting out the fire. Dry powder extinguishers while being effective can also leave behind quite a mess. They also have a tendency to damage machinery and other objects, and can blur your vision when being used indoors.

Extinguishers that come with a black colour coding indicate that it is a carbon dioxide, or CO2, extinguisher. This is the recommended method of fighting Class E electrical fires, and it is also highly effective against Class B liquid fires. The thing to remember about this type of fire extinguisher is that it provides no security for after the fire is out, meaning that the fire could start again. A carbon dioxide extinguisher with a wet chemical is a special extinguisher that is made for putting out Class F fires. There is also a specialist fire extinguisher for use against Class D metal fires such as sodium, lithium, and manganese, when the metal is in the form of turnings or swarf.

Any fire extinguisher that has been green colour coded is a Halon fire extinguisher, and has been deemed illegal except for use by the military or law enforcement. By knowing how the colour coding relates to the chemicals that are present in a particular fire extinguisher and how each of these relates to being able to extinguish different classes of fires you can better prepared to have the proper fire extinguisher on hand for the type of fire that could occur in your home or business. Using the proper extinguisher for the type of fire that is present will not only help in getting the fire under control, but will also be a factor in making sure it will be done safely.

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    • profile image

      yo 

      3 years ago

      great thanks!

    • profile image

      cecilia 

      3 years ago

      Thank u very much with this clear information, it helped me with my assignment research.

    • profile image

      ali 

      5 years ago

      safety first

    • profile image

      5 years ago

      Thanks, helped with my homework!

    • profile image

      hary 

      6 years ago

      its great help and useful in homework.

    • profile image

      efgfsgf 

      6 years ago

      it is very important to about this .

    • profile image

      aswata 

      6 years ago

      faltu useless thura

    • profile image

      S M ASIF JAMAL 

      6 years ago

      IT IS USEFUL TIPS TO EXTINGUISH THE FIRE BY USING CORRECT FIRE EXTINGUISHER WITH COLOR CODING TYPES OF FIRE.

    • profile image

      randy 

      6 years ago

      hi, if any one need fire extinguisher recharge, fire suppression, kitchen hood cleaning in bay area please call bay area fire protection. thanks

      www.bayareafireprotections.com

    • profile image

      KHUSHI BAFNA 

      6 years ago

      IT IS A VERY KNOWLEDHEABLE AND INFORMATIVE HUB AND HELP ME COMPLETE MY PROJECT ON TIME

    • profile image

      kondwani kambalame 

      6 years ago

      oh this is nice it helped me with my assignment

    • profile image

      Jeremy 

      7 years ago

      This link clarifies the colours and classifications for the UK.

      http://asifirefighting.com/faq/

      Hope this helps

    • profile image

      rhyan b8 

      8 years ago

      it is infortant to taken solas 4 seaman

    • profile image

      Mollie 

      8 years ago

      All this just helped me with a load of homework i had to do thanks guys!!! :)

    • profile image

      LeoSavage 

      8 years ago

      "...it is important to know what kind of extinguisher you should use for different kinds of fires."

      This is so true. Thanks for taking the time to put together such a great hub. Keep up the great work!

    • ss sneh profile image

      ss sneh 

      8 years ago from the Incredible India!

      This is a very informative hub to everyone especially workers in the construction sites where safety becomes a number1 priority. Thanks

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