The first of the three types of fire extinguisher is airpressurized water extinguisher. Chapter 7 portable fire extinguishers flashcards quizlet. Types of extinguishers it is never easy to choose from the different types of fire extinguishers so we have produced a chart to help you decide which ones are good for which fire risks. The foam will leave a residue, which must be cleaned away after the fire is put out. The extinguishers supersonic nozzle converts water into dry microscopic particles, which are then drawn. Fire extinguishers meeting bs en3 are manufactured with a red body and have a band of a second colour covering between 510% of the surface relating to the extinguisher s contents. It is important to remember that water conducts electricity and should not be used around electrical equipment unless water extinguishers with additive are used. Water extinguishers are for class a fires only they should not be used on class b or c fires. The extinguisher must be easily accessible and in good working order. The greatest portion of this powder is composed of monoammonium phosphate.
Wet chemical extinguishers create a barrier between the. Employees should take the time to learn the locations of the fire extinguishers in their workplace. Dry chemical extinguishers put out fire by coating the fuel with a thin layer of dust. These types of fire extinguishers will be solid red and will have the words water mist printed within a white rectangle. This separates the fuel from the oxygen in the air. Class k class k test based on capability to extinguish fire from deep fryer using light oils with a surface area of 2. Abc fire extinguishers are filled with a fine yellow powder. Fireline corporation has provided fire extinguishers and portable extinguisher service for more than 60 years. Fire extinguishers are available in different types with each one having specific fire classes that they are suitable for use on.
The successful use of a fire extinguisher depends on the following conditions. The co2 extinguisher does exactly that extinguishes co2. This video is about different types of fire extinguishers and their uses. You can also check with the fire extinguishers manufacturer to learn the types of fires the. Water fire extinguishers are made to extinguish class but a water mist extinguisher is made for both a and c class fires. Water and foam based extinguishers should not be used on fires involving an electrical. Fire extinguisher simple english wikipedia, the free. Three components need all three components to start a fire fire extinguishers remove one or more of the.
Selection of fire extinguishers there are a number of types of portable fire extinguishers available in australia. There are three main types of fire extinguisher that you can get and chose whichever will give you the most convenience. Fire safety lecture16 nov 2015 fire safety fire is a form of a chemical reaction that involves the rapid oxidation of combustible fuel material with the subsquent liberation of heat and light. Due to their electric conductivity, however, these extinguishers are not suited for b and c fires. Other types of extinguishers work only on a certain class of fire. How to use a fire extinguisher marsden fire safety. List the class ratings used for portable fire extinguishers and describe the test or qualifications each is based on. Some type of fire extinguishing agents can be used on more than one class of fire. If you use the wrong type of fire extinguisher on the wrong class of fire, you can. A carbon dioxide fire extinguisher co2 is one of the cleanest types of extinguishers to use as it leaves no residue and requires no cleanup. A comprehensive database of more than 16 fire extinguisher quizzes online, test your knowledge with fire extinguisher quiz questions.
Fire extinguishers have labels that tell you what kind of fire they can put out. Fire is the rapid oxidation of any combustible material. The most common types of fire extinguishers are classified by agent. Types of fire extinguishers and their uses cscs health.
Some extinguishers can put out only one type of fire, such as type a. There various classes to fires from a to f each which their own properties. Fire extinguisher training yale emergency management. Different types of fire extinguishers are designed to fight different classes of fire. Class c extinguishers may be used to extinguish class a, class b, and class c fires. Handling ordinary combustibles and liquids, class ab extinguishers use foam as the extinguishing agent.
It is extremely important to identify which types of dry chemical extinguishers are located in your area. Sentry safety using fire extinguishers and their types. Just click the links or images to see the various sizes and prices for each type. Potassium, sodium, aluminum, and magnesium burn at extremely high temperatures. Type of fire extinguisher foam, dry powder, carbon dioxide co2. Fire extinguishers article about fire extinguishers by. The most common extinguishers, class abc extinguishers are usually used in offices, schools. Selection of fire extinguishers there are a number of types of portable fire. Many fire extinguishers today use a multipurpose dry chemical rated for a, b and c fires. The class, quantity, and placement of fire extinguishers is determined by the potential size and type of fire that can occur in locations, such as office space, storage space, research etc. Dry chemical extinguishers work on multiple fire types and use a chemical reaction to interrupt the fires combustion. Fire extinguishers have a coloured band to denote their contents.
In the university environment, safety inspectors, building preparedness planners and their staff, facilities services personnel, housekeepers, etc. This is a quick check that an extinguisher is available, charged, and will operate. Types of fire are separated into different classes based on the fuel source involved. Extinguish the fire by taking away the heat element of the fire triangle. Class d extinguishing equipment is marked with a yellow. The material in a class d extinguisher is a foam product that puts out the fire by replacing the oxygen near it. Recommendations for colour coding to indicate the extinguishing media contained in portable fire extinguishers provides recommendations. Ordinary combustible materials, such as wood, cloth, paper, etc.
As you evacuate close the doors of the roomsdo not lock as this will slow down the spread of smoke and. Knowing the classes of fire will help you choose the appropriate extinguisher. Before attempting to operate any fire extinguisher, know which type of extinguisher to use. Our online fire extinguisher trivia quizzes can be adapted to suit your requirements for taking some of the top fire extinguisher quizzes. Fire extinguishers meeting bs en3 should have a red body ral 3000 and an agent specific colour band covering between 510% of the surface relating to the extinguisher s contents. Our salesmen are trained to access the building occupancy, the potential fire hazards and the anticipated class of fire before recommending the proper type and size of extinguishers required to meet the codes. Different fuels create different fires and require different types of fire extinguisher agents. A class c fire extin guisher is marked with a blue circle containing the letter c. Dry water mist extinguishers are unique in that they can combat almost all types of fires, including class f fires that are usually difficult to attack. For example, a simple water extinguisher might have a label like the one below, indicating that it should only be used on class a fires. Types of extinguishers cont dry chemical dry chemical is the most widely used type of fire extinguisher and is also recognized as a multipurpose abc fire extinguisher.
The latter standard mainly covers the smaller size of fire extinguisher, while bs en 3 covers fire extinguishers from 1kg to 12kg and 2litres to 9litres capacity. Types of fire extinguishers dry chemical extinguishers are usually rated for multiple purpose use. C0 2 extinguishers work by smothering the fire and robbing it of its fuel source, oxygen. Water fire extinguishers are suitable for use in environments containing solid combustible materials such as wood, paper and textiles. Halon extinguishers contain a gas that interrupts the chemical reaction that takes place when fuels burn. The national fire protection association nfpa has set up standards to follow when it comes to the installation and use of fire extinguishers. The discharge stream could spread the flammable liquid in a class b fire or could create a shock hazard on a.
The agent works by interrupting the chemical chain reaction. The proper type of extinguisher for each class of fire will give the best control of the situation and avoid compounding the problem. Firefighting strategy fire fighting strategy involves the following basic procedures. If the person who notices the fire feels that it cannot be tackled by extinguishers, he can directly inform the fire station without delay. Fire extinguishers can help remove the fire, and may stop it from burning. The classification of fires given here is based on the type of material being consumed. The many types of fire extinguishers a total solution. The extinguisher must be the right type for the fire. Also the type of fires it is appropriate and safe to use on. Do not touch the horn on a co2 extinguisher, it gets very cold and can damage the. Types of fires many fires are small at origin and may be extinguished by the use of portable fire extinguishers.
Understanding the different types and uses of fire extinguishers. However, other extinguishers of this type are only effective on b and c fires. Using the correct type of extinguisher for the fire, use the fourstep pass technique. Most fire extinguishers will have a pictograph label telling you which classifications offire the extinguisher is designed to fight. The powder also works to interrupt the chemical reaction of fire. Several types of fire extinguishers are available to fight different types of fires. The successful use of any type of fire equipment fire extinguishers, fire. These two types of fire extinguishers do not have a chemical component, making them ideal for people who do not wish to use chemicals. They contain an extinguishing agent and use a compressed, nonflammable gas as a propellant. Check the chart below to match extinguishers to a particular class of fire. Criteria for fighting the fire fire is smalland contained you have safe egress exit route can be reached without exposure to fire available extinguishers are rated for size and type of fire when fighting the fire remember to keep an exit to your back when the fire extinguisher is empty get out. Others have warnings where it would be dangerous for the operator to use a. Aim low, pointing the nozzle or hose at the base of the fire.
Different types of fire extinguishers and their uses youtube. Also, on a class a fire it creates a barrier between the fuel and the oxygen. Types of fire extinguishers and their applications kinetix. Depending on the size, some fire extinguishers can be carried around and operated by hand. Fire safety equipment types of fire extinguishers fire. Foam agents also separate the oxygen element from the other elements.
These types of extinguishers are often used to protect. Fire extinguisher, portable or movable apparatus used to put out a small fire by directing onto it a substance that cools the burning material, deprives the flame of oxygen, or interferes with the chemical reactions occurring in the flame. A fire extinguisher is a device which can be used to control a fire. Each different type of extinguisher agent has a corresponding colour making identification easier for the user. As the name implies, this fire extinguishers are made from pressurized air and water much like a. You must be able to use the extinguisher in the correct manner and should be trained before attempting to put out fires. Class d fire extinguishers are not used on any other class of fire. By doing so, it removes oxygen from the fire, effectively suffocating it of oxygen. Class d extinguishers are recommended on burning metal.
It is best if these extinguishers are not used in a small, confined space because of this. Water based extinguishers are ideal for schools, small offices, stockrooms etc. Fire extinguisher of the future is all about that bass. Fire fighting foams have been grouped into two main types. Different kinds of fire can be controlled by different substances. Portable fire extinguisher fire equipment manufacturers association. So to get safe against major fire it essential to keep portable fire extinguisher where the fire risk remains such as the office, kitchen and the vehicle. There are various different types of fire extinguishers ranging from water to wet chemicals. On hearing the alarm evacuate the building and assemble at the designated assembly point.
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