what should a foam fire extinguisher not be used on?
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Foam Extinguisher (AFFF) Fires involving solids and burning liquids, such as paint and petrol but not suitable for chip or fat pan fires. Safe on fires caused by electricity if tested to 35kV (dielectric test) and a 1m safety distance is adhered to. Do not use on chip or fat pan fires.
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Foam (AFFF – Aqueous Film Forming Foam) Fire Extinguishers are suitable for use on Class A (wood, paper, material & cloth) Fires & Class B (Flammable liquids: spirits, diesel, petrol etc.) Fires. ... When released, the foam forms a seal over the fire which prevents re-ignition.
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What is a dry powder fire extinguisher used for? Dry powder fire extinguishers extinguish the fire primarily by interrupting the chemical reaction taking place and cutting off the oxygen supply. They can be used on fires involving solid combustibles, flammable liquids and electricity.
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['Dry Chemical. ... ', 'Wet Chemical. ... ', 'Clean Agent. ... ', 'Water Stream (extinguisher). ... ', 'Water Mist (extinguisher). ... ', 'Foam. ... ', 'Dry Powder.']
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Sodium bicarbonate is used in fire extinguishers because carbon dioxide is produced when it reacts with the high heat of the fire. Fire extinguishers...
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['Explosives, fireworks, Christmas crackers, sparklers, etc.', 'Compressed gases; for example butane, propane, lighter fuels, etc.', 'Lighters.', 'Oxidizing substances like bleaching powder and peroxides.', 'Flammable liquids such as paints.']
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Fire extinguishers with a Class A rating are effective against fires involving paper, wood, textiles, and plastics. The primary chemical used to fight these fires is monoammonium phosphate, because of its ability to smother fires in these types of materials. “B” LIQUIDS.
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Dry powder fire extinguishers extinguish the fire primarily by interrupting the chemical reaction taking place and cutting off the oxygen supply. They can be used on fires involving solid combustibles, flammable liquids and electricity.
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Carbon Dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge. Carbon dioxide can be used on Class B & C fires. They are usually ineffective on Class A fires.
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Safety and Warnings B-vent systems are not intended for all types of fuels. They should never be used with wood-burning appliances, such as fireplaces and wood stoves, incinerators, oil-fired or coal-fired appliances, or any appliances that burn anything other than liquid petroleum or natural gas.
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['Flammable liquids and solids.', 'Oxidisers such as bleaching powders.', 'Organic peroxides.', 'Tear gas devices or any gas cylinders.', 'Infectious substances such as live virus materials.', 'Wet-cell car batteries.', 'Magnetrons.']
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There are 5 main fire extinguisher types in Australia – Water, Foam, Dry Powder, CO2 and Wet Chemical. You should have the right types of fire extinguisher for your house or business premises, or you may not meet current regulations.
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An AED should also never be used around combustible materials, solvents, fuel, or flowing oxygen. The victim should instead be taken to a safe location before administering any electrical shock.
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Fire rated expanding foam can be used as an efficient seal against smoke and gas, providing up to 240 minutes fire rating. As well as being useful due to its excellent filling characteristics, fire rated foam has high thermal properties and provides acoustic insulation.
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It uses a specially fluidized and siliconized monoammonium phosphate powder. From Quora: While fire extinguisher powder is non-toxic, it is not entirely safe. The chemicals used are considered appropriate for home use, but you should take precautions to avoid touching or inhaling too much of the powder.
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Powder fire extinguishers are more powerful than foam extinguishers; therefore, they are typically smaller than their foam counterparts. Instead of soaking into a burning material, however, powder extinguishers work by forming a crust-like blanket which is able to effectively starve a fire of fuel.
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5B:C Fire Extinguishers. 10 results found that include 16 products. Fire extinguishers are portable devices that spray water or wet or dry chemical agents for putting out small fires. They are handheld and can be carried to the fire. View All.