This code, for example 13A/55B, defines the Class (or type) of fire and the size of fire this type of … The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. In addition, the fire extinguisher will also bear a pictogram if it is suitable for use on electrical equipment fires, The precise fire rating for Class A and B fires is expressed as a number and letter combination, such as 34B, There are clear operating instructions on how to use each types of extinguisher. These are kept handy at places, namely fire points, in buildings, factories, public paces or transportation. It is critical that you have training and have used them to ensure your safety and others around you. The UL rating is broken down into Class A and Class B:C ratings. Fire extinguishers are classified by fire type. A 175B rating uses 175 litres and so on. All fire extinguishers have ratings stamped on the faceplate of the appliance. Water-based Class A extinguishers may also have additives to make them more effective. Alloy Steel 5kg Co2 Fire Extinguisher for use tackling fires that involve flammable liquids or live electrical equipment. To ensure you buy the right type and size for the application you have in mind, learn more about fire extinguisher classes and size ratings. Fire Extinguisher Ratings. Log in, Every fire extinguisher is colour-coded for easy reference, The extinguisher’s fire rating is shown both as a letter (such as A or B) and also as a pictogram. If you’re not sure what type of fire extinguisher to use for each class of fire, take a look at our blog that explains this in detail. B-rated fire extinguishers are numbered in 10s. There are 9 ratings for Class B fire extinguishers - 21B through to 233B. The ratings on fire extinguishers allows users to quickly identify the type of fire which an extinguisher will be most effective for. Thus, a 4A will equal about five gallons of water. These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited. You find Class A extinguishers with ratings such as 1-A, 2-A, 3-A, 4-A, 6-A, 10-A, 20-A, 30-A and 40-A. 34B. Definition - What does Fire Extinguisher mean? In practice you should estimate the volume of combustibles at risk against this benchmark and select the most applicable size for the job. The rating of a fire extinguisher is designed to help users understand the class and size of a fire in which the extinguisher is meant to be used. The operating pressure is 100 psi. In most cases, the rating is a combination of numbers and letters. When it’s time to purchase fire extinguishers for your business, you may be confused by the different letters and numbers on the label. The rating number refers to the size of fire that can be extinguished under test conditions. Examples of available 13A rated extinguishers in our range, Water with Additive 3 litre It’s effective against all types of common home fires, including fires that involve combustible materials, … This type of fire extinguisher (also called multi-purpose fire extinguisher) is the one that’s recommended for home use. Fire extinguisher ratings are designed to indicate the type of fires they should be used on, and to give an indication of how effective they will be. This compact and handy 2 litre Foam Fire Extinguisher with LPCB Approval is used for combating class A & B fires (flammable solids and liquids). Class D fire extinguishers are commonly found in a chemical laboratory. What the devil is size 13 you may ask? In any event, a sensible approach is to cut off the power supply to any area where a fire occurs. The first time you use a fire extinguisher shouldn’t be during emergencies. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish. 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