Combustible Metals. This Kidde fire extinguisher is UL rated 1-A, 10-B:C and is ideal for the most common fires. Amerex B443 - 6 lb ABC Dry Chemical Fire Extinguisher (3A:40B:C) ABC fire extinguishers are ideal for homes, businesses, hallways, office buildings, apartment buildings, chemical storage areas, RVs, boats, and cars. You might come across a fire extinguisher labeled 4A:20B:C. The numbers indicate the size rating of each extinguishing agent. For each B, the extinguisher can stop one square foot of Class B fires. An ABC extinguisher uses dry chemicals to suppress fires. The Class A size rating represents the water equivalency. For example, if you use a water-based fire extinguisher on an electric fire, you will end up spreading the fire and exposing yourself to electrocution. But more often than not, adults pass into their professional lives having forgotten some of the basics. Electrical Equipment. A gasoline fire is a "flammable liquid" fire, and you would use a Class B (or ABC or BC) fire extinguisher. For example, a 4-A rated extinguisher would be equal to five (4 x 1.25) gallons of water. Thus, an “8A” extinguisher fights Class A fires as well as 10 gallons of water (8 x 1.25 = 10), and a 40A extinguisher offers 50 gallons' worth of firefighting power. What Do the Numbers Mean On a Fire Extinguisher? I believe this article is beneficial to you, please share it on your … Here are some fire extinguisher ratings: 1-A, 2-A, 3-A, 4-A, 6-A, 10-A; 1-B, 2-B, 5-B, 10-B, 20-B, 30-B, 40-B; NOTE: For Class A fires the size test is conducted using a fire comprising an open latticework of wooden sticks approx 40mm square x 500mm long piled 14 high. Posted on: April 20, 2017. Class B fires involve flammable liquids such as gasoline, oil, solvents and the like. The coffee table, couch, desk, bookshelf and books on the shelf will all be Class A combustible materials. The number in front of the A rating indicates how much water the extinguisher is equal to and represents 1.25 gallons of water for every unit of one. ABC or Multi-Purpose Fire Extinguishers can be used on Class A, B, or C fires. Rockville, MD 20855. Unbeknownst to many, not all fire extinguishers are created equal. The designation tells you what kind of fire the extinguisher can be used on. The number in front of the B … 1 equals 1¼ gallons of water, so in this example, 2A means the extinguisher can put out a fire just as effectively as 2½ gallons … But deciding on the right fire extinguisher can be confusing. Required fields are marked *. This site uses Akismet to reduce spam. Read Also: 20 Key duties of a fire warden. 2A (2) 711A (1) 3A:20B (1) 1A:10B:C (16) 1A:20B:C (3) 2A:10B:C (7) 2A:40B:C (3) 3A:40B:C (17) … Safety Note: Follow the guidance of your local fire authority about the safety equipment best for you – this does not constitute professional advice. Class A fire extinguishers. This label or tag will read "Class A, Class B, Class C, Class D" or "Class ABC." Step 4 Know that Class C and D fire extinguishers, as well as some other class combination fire extinguishers, do not display any ratings and should be … See more. For instance, if a fire extinguisher has a 1-A rating, it can control class A fires and can dispense the equivalent of 1.25 gallons of water. Fire extinguishers in your house, garage, car and camper help you put out small fires quickly before they spread. Having a fire extinguisher within reach can Having a fire extinguisher within reach can help you create a path to safety and may even help put out a small, contained fire. But a chemical from those fire extinguishers can settle in grease and later reignite, Chase says. So a 40B rating refers to 40 square feet. Fire Extinguisher Classes. Thus in our 13A/55B example this extinguisher will combat a Class A fire (typically freely burning materials like wood, cloth and coal) of Size 13 or a Class B fire (flammable liquid) of size 55. The number represents the effectiveness. This class of fire extinguishers does not have a numerical rating. |, selecting code-compliant fire extinguishers, Class A puts out ordinary combustible fires (wood, paper, plastic, etc. 4A is equivalent to 5 gallons of water. 7668 Standish Place The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish. This Kidde Pro 340 fire extinguisher is UL rated 3-A, 40-B: C and is ideal for light manufacturing areas, restaurants, auto showrooms, parking garages and storage areas. Its heavy duty metal head is designed to exceed demanding needs and can be recharged by a certified professional if used. 1-A:10-BC. This Kidde Pro fire extinguisher model is fitted with a pressure gauge that provides an at-a-glance status. They are rated based on the type of fire that they will put out, and their classification is determined by the size of fire they will put out. A quick review: Class A: Wood, paper, cloth, plastics, trash Class A fire extinguishers are used for ordinary combustibles, such as paper, wood, cloth, and some types of plastic. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. … The C rating does not have a numerical designation. © 2021 Copyright Guardian Fire Protection Services, LLC. Class A: Ordinary... $54.99 $81.81. Learn how to operate extinguishers be… If you need an ABC fire extinguisher, search your extinguisher’s label for the ‘A-B-C’ sticker to ensure it meets ABC standard for household fire extinguisher use. It is suitable for use on energized electrical equipment. It does mean the extinguishing agent is non-conductive A 40-B extinguisher, for example, is effective for putting out a flammable liquid fire covering up to 40 square feet. 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