Fire is the rapid oxidation of any combustible material. The proper type of extinguisher for each class of fire will give the best control of the situation and avoid compounding the problem. This type of fire burns with an ember, leaves an ash, and is best extinguished by removing the heat side of the triangle. Fire extinguisher ratings numeral fire class range direct index of the size fire the quantity of agent can handle 1a thru 40a a trash wood paper indication of the square foot area of flammable liquid the extinguisher will handle 1b thru 640b b liquids grease c electrical equipment no numeral is used because there are no degrees of. There is too much smoke or you are at risk of inhaling smoke. C and is ideal for commercial and residential buildings, construction sites and manufacturing sites. Fire extinguisher safety training this training program was established to create a broader awareness for the safety of the university of northern iowa students, faculty and staff and their environment. Remove the power and the class c fire becomes one of the other classes of fire. Know what to do if you find a fire be able to correctly and safely select and use a fire extinguisher. A slash through any of the symbols tells you the extinguisher cannot be used on that class of fire. Using a fire extinguisher the following steps should be followed when responding to incipient stage fire. The preferred method for extinguishing class a fires is to remove the heat. In some cases, particular extinguishers are not only considered ineffective against certain classes of fire, they can be dangerous if used in those circumstances. Belvue business centre, belvue road, northolt, middlesex, ub5 5qq.
Understanding this will allow you to correctly use the right fire extinguisher. The three mostly commonly used extinguishers on the boston college campus are. Sound the fire alarm and call the fire department, if appropriate. This powerpoint presentation will give you some knowledge about the fire triangle, the different classification of fires, the different types of fire extinguishers, and give you instruction on how to properly use a fire extinguisher. The wrong type of extinguisher can be dangerous or life threatening. A class b fire extinguisher is marked with a red square containing the letter b. Pull the pin aim at base of fire squeeze the handle sweep from side to side types of fires. The numerical rating for this class of fire extinguisher refers to the amount of water the fire extinguisher holds and the amount of fire it will extinguish. The fire classification system is designed to categorise fires into groups based on the type of fuel involved. Fire extinguishers read the instructions on your extinguisher for proper use. The following table illustrates the types of extinguishers, fire classes for which each is used and the limitations of each extinguisher. Always have an exit to your back in case you need to escape. If no cargo extinguisher meets the safe use guidance for the aircraft cabin. Fire extinguishers are categorized by the types of fires they can extinguish and the size of the fire they are capable of extinguishing.
Fire classes type water afff foam abc powder c0 2 wet. Squeeze the handle of the fire extinguisher to release the extinguishing agent. Even with a fire suppression system, a fire mayrekindle or continue to burn from splashes in areas that are not protected with the fire suppression systems. Selection of fire extinguishers there are a number of types of portable fire extinguishers available in australia. Due to displacement of oxygen, do not used in confined areas. Select safety sales has compiled this faq sheet to help you make the correct choice when making your purchase. Each type of extinguisher may be rated for one or more classes of fire. Know what to do if you find a fire be able to correctly and safely select and use a. Back away from the fire area to safety once the fire is out.
Fire extinguisher program environmental health and safety. This is produced as a guide, always check manufacturers recommendations for use and suitability. A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. The type of fire extinguisher needed depends on the type of fire hazard present. Fire extinguisher guide total fire safety fire safety. Class b fires generally involve materials that boil or bubble. If you use the wrong type of fire extinguisher on a fire, you can, in fact, make matters worse. This helps users to select an appropriate fire extinguisher in the event of a. Sweep the nozzle from side to side while pointed at the base of the fire until it is extinguished.
Fire extinguisher training western carolina university. The classification of fires given here is based on the type of material being consumed. Newer fire extinguishers use a picturelabeling system to designate which types of fires they are to be used on so users can quickly identify. The 3 as cont attempt attempt to fight a fire only after the first two steps have been completed and you feel confident in yourself to do so.
Fire basics fire extinguisher overview types of fire extinguishers following the. This document meets the training and education requirements for portable fire extinguisher osha 29 cfr 1910. Common fire extinguisher classes and suitability guide. Type of extinguishers and the classes of fire for which they. Guidance for handheld extinguishers for use in aircraft. A missing symbol tells you only that the fire extinguisher has not been tested for a given class. Fires are classified by the types of materials that are burning. The time to use a fire extinguisher is at the beginning stages of the fire. Youve got to choose the right fire extinguisher for the job. Types of fires many fires are small at origin and may be extinguished by the use of portable fire extinguishers.
It is the sole responsibility of the supervising employee to ensure all employees under their direction obtain fire extinguisher training if employees want to use fire extinguishers. Extinguishers are rated by which types of fire they can put out, as follows. Consider installing a class c fire flooding suppression system in the cargo compartment or alternatives to handheld extinguishers that would provide effective fire protection. The fire must be discovered in its incipient stage for the extinguisher to be effective.
A fire extinguisher is the first step to fire preparedness. Fires involving flammable liquids such as gasoline, paint, diesel fuel or solvents fire extinguishers back. The three most common types of fire extinguishers are. The fire appears too large to handle with one extinguisher. Select a cargo extinguisher that meets the safe use guidance for the aircraft cabin. Class a extinguishers will put out fires in ordinary combustibles, such as wood and paper. Using a fire extinguisher university of california. Extinguisherstypek wet chemical fire extinguishers are silver in color and only found in areas that need protection from grease fires. Identify a safe evacuation path before approaching the fire. Fire extinguisher training yale emergency management. Fire is a rapid chemical reaction of oxidant with fuel.
Fire extinguishers safety training handout extinguishers are classed by the type fire they can put out. Extinguishes by cooling burning material below the ignition point. Do not allow the fire, heat, or smoke to come between you and your evacuation path. Educate on the importance of fire extinguisher maintenance. There are basically four different types or classes of fire extinguishers, each of which extinguishes specific types of fire. An apw water extinguisher is safe to use on an electrical fire. This results in a chemical chain reaction which starts a fire. When buying fire extinguishers for your business, its important to buy the right type of fire extinguisher for your needs. Types of fire extinguishers different types of fire extinguishers are designed to fight different classes of fire. Per nfpa 10, burning may be classified into one or more of the following fire classes and your fire protection specialist will select the right fire extinguisher size and agent for the hazard. If you were to use the wrong type of fire extinguisher on the wrong class of fire, you may or may not be able to control or even extinguish the fire. The extinguisher works by displacing oxygen from the fire and replacing it with carbon dioxide.
Think about your homes biggest fire threats and what prevention tools. Some extinguishers are combination types that can be used on several different types of fires. Local fire departments or fire equipment distributors often offer handson fire extinguisher training. If you would like to receive this training, please watch the employee fire extinguisher training video see. Learn about the different classes of fire and types of extinguishers used in the fire service. Different types of fire extinguishers are designed to fight different classes of fires. Stay low when youre in a fire situation to avoid breathing smoke and vapors. What fire is causes of fire importance of portable fire extinguishers classifications of fire types of portable fire extinguishers visual inspection how to use a portable fire extinguisher rules for fighting fires reporting an emergency. Class b extinguishers may be used to extinguish both class a and class b fires. Also, on a class a fire it creates a barrier between the fuel and the oxygen. Every fire extinguisher is rated for the types of fires its effective in putting out.
Use the right type of extinguisher for fighting the fire. Fire extinguishers classes, types and use if you need to purchase a fire extinguisher, you may have questions about the different types that are available. Fire extinguisher the co2 fire extinguishers can be used for fires involving electrical equipment and class b liquid fires. It is the sole responsibility of the supervising employee to ensure all employees under their direction obtain fire extinguisher training. Know the location of all telephones,emergency exits and fire extinguishers. The extinguisher must be the right type for the fire. Extinguisher class a b c metal d f fire extinguisher suitability class a fires class b fires class c fires class d fires electrical fires class f fires type of fire extinguisher. Fire class of extinguisher extinguisher fire it limitations type extinguishes comments dry chemical a, b, c generally good for use in roofing. The agent works by interrupting the chemical chain reaction.
All you ever wanted to know about fire extinguishers. Fires are classified according to the type of fuel that is burning. Extinguisher class a b c metal d f fire extinguisher suitability class a fires class b fires class c fires class d. Fire extinguisher training university of detroit mercy. Extinguishers size read the instructions that come with the fire extinguisher and become familiar with its parts and operation before a fire breaks out. It is not intended for use on an outofcontrol fire, such as one which has reached the ceiling, endangers the user i. Classes of fires there are 3 basic classes of fires. Completed fire extinguisher inspection logs will be maintained in the safety files and become a part of the safety records. The successful use of a fire extinguisher depends on the following conditions.
Contact your local fire department or fire marshal to obtain additional information or assistance with this determination. Classes of fires and extinguishers not all fires are the same. Each fire class is represented by a letter of the alphabet with the exception of electrical which are simply referred to as electrical fires and an icon. Portable fire extinguisher fire equipment manufacturers association. Extinguishers are labeled to correspond to the classes of fires they are designed to fight. Any fire extinguisher that shows a loss of pressure during the monthly inspection will be inspected and recharged by certified personnel. Only then should you permit yourself to fight a small fire. Safe use of fire extinguishers fire extinguisher safety dos and donts do. Fire protection and prevention occupational safety and. This document meets the training and education requirements for portable fire extinguisher osha. Aim the fire extinguisher low, with the nozzle pointed at the base of the fire.
Its very important to understand the four different fire or fuel source classifications. This kidde pro plus 20mp fire extinguisher is ul rated 6a, 120b. Having a fire extinguisher within reach can help having a fire extinguisher within reach can help you create a path to safety and may even help put out a small, contained fire. Be sure nothing is blocking or limiting your ability to reach it. Mar 09, 2020 a fire extinguisher is the first step to fire preparedness. The extinguisher must be easily accessible and in good working order. Fire extinguishers basic information can be used to put out incipient and localized fires classes a, b, and c are most common and refer to corresponding fire classes classes d and k are for specialized fires and must be used accordingly never use a fire extinguisher on quickly spreading fire remember the acronyms r. Think about your homes biggest fire threats and what prevention tools and steps you can take to keep your family prepared. Transgender fire chief files discrimination lawsuit over firing 1. There are several different classifications of fires based primarily on the fuel source. Common fire extinguisher classes and suitability guide there are other special types of extinguishers available for more specific risks. Create a picture in your mind that will reflect the instructions on the extinguisher. Fire extinguishers are one element of a fire response plan, but.
Carbon dioxide extinguisher works on classes b and c and works by suffocating the fire. Most fire extinguishers will have a label which will tell you which types of fire the extinguisher is designed to fight. Types of fires and extinguishing agents the fire equipment. Basic fire extinguisher training online powerpoint training. All fire extinguishers are labeled with standard symbols for the classes of fires they put out. Carbon dioxide extinguishers are designed for which types of fuels. Class d fires are fires in combustible metals such as potassium, sodium. You should also consider a smoke detector, either purchased as a standalone device or through a home security system provider. I have identified things i feel are important points for you to learn from this presentation.
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