Use of Dry Chemical Fire Extinguishers (PDF)Ī whitepaper on the use of dry chemical fire extinguishers in locations where electronics and high value assets are located. Your fire equipment professional is the ideal person to perform the annual maintenance because they have the appropriate servicing manuals, tools, recharge materials, parts, lubricants, and the necessary training and experience.Ī Review of the Impact of Fire Extinguishers in Reducing the Carbon Footprint of Building Fires (PDF)Ī scientific study of the role of portable fire extinguishers in reducing the carbon footprint of a fire in a sprinklered building by Jensen Hughes, a fire protection engineering firm. This is a thorough examination of the fire extinguisher’s mechanical parts, fire extinguishing agent and the expellant gas. Does the gauge or pressure indicator show the correct pressure?įire extinguishers must also be maintained annually in accordance with local, state, and national codes and regulations.Is the extinguisher in the correct location?.For most extinguishers, this is a job that you can easily do by locating the extinguishers in your workplace and answering the three questions below. You, the owner or occupant of the property where the fire extinguishers are located, are responsible for arranging your fire extinguishers’ maintenance.įire extinguishers must be inspected or given a “quick check” every 30 days. Like any mechanical device, fire extinguishers must be maintained on a regular basis to ensure their proper operation. You might also get a Type A for the living room and bedrooms and an ABC for the basement and garage.Fire Extinguisher Inspection and Maintenance A good extinguisher to have in each residential kitchen is a 2A10BC fire extinguisher. This would mean this extinguisher is good for Type A fires with a 2 1/2 gallon equivalence and it is also good for Type B fires with a 5 square feet equivalency. For example, you might have an extinguisher with a label that reads 2A5B. For example, 2 would be two square feet, 5 is five square feet, etc.įire extinguishers can also be made to extinguish more than one type of fire. For Type B and Type C fire, the number represents square feet. For Type A fires, a 1 would stand for 1 1/4 gallons of water, a 2 would represent 2 1/2 gallons, 3 would be 3 3/4 gallons of water, etc. Number Ratingįire extinguishers also have a number rating. In other words, don't use it on an electrical fire. For example, a Type A extinguisher will show a pictogram of an electrical cord and outlet with a big slash through it. These pictograms are also used to show what not to use. A Type C extinguisher has a pictogram showing an electrical cord and outlet. For instance, a Type A extinguisher has a pictogram showing burning wood. These picture the type of fire on which an extinguisher is to be used. Recently, pictograms have come into use on fire extinguishers. These types of fire are very dangerous and seldom handled by the general public. This extinguisher is used for metal fires such as magnesium, titanium and sodium. Type D LabelĪ Type D label is in a star on the extinguisher. This extinguisher is used for electrical fires such as in wiring, fuse boxes, energized electrical equipment and other electrical sources. Type C LabelĪ Type C label is in a circle on the extinguisher. This extinguisher is used for flammable liquid fires such as oil, gasoline, paints, lacquers, grease, and solvents. Type B LabelĪ Type B label is in a square on the extinguisher. These types of fire usually leave ashes after they burn. This extinguisher is used for ordinary combustibles such as cloth, wood, rubber and many plastics. Type A LabelĪ Type A label is in a triangle on the extinguisher. Traditionally, the labels A, B, C or D have been used to indicate the type of fire on which an extinguisher is to be used. Using one type of extinguisher on the wrong type of fire could be dangerous and make matters even worse. Fires involving wood or cloth, flammable liquids, electrical, or metal sources react differently to extinguishers. Fire extinguishers are labeled according to the type of fire on which they may be used.
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