Class D- Combustible Metals. White Powder B, (E) ‘AB(E)’ type powder is also suitable on Class A fires. Fire extinguishers should tell you what type they are, and what class of fire you can use them on. Holding the extinguisher by the handle with the nozzle pointing away from you, pull out the pin located below the trigger. There are several class D fire extinguisher agents available; some will handle multiple types of metals, others will not. Class D Fires. As with Class B fires, a solid stream of water should never be used to extinguish this type because it can cause the fuel to scatter, spreading the flames. Fire Extinguisher Quiz; Interactive Fire Safety Map; Types of Fire Extinguishers. There is data showing that zirconium, uranium, titanium, and powdered aluminum fires can be controlled and extinguished with this unique extinguisher. Foam agents also separate the oxygen element from the other elements. It features a soft flow extension applicator and long-range nozzle to help keep hands away from heat and to prevent toxic fume inhalation. To achieve a Class “A” rating, the extinguisher must be capable of putting out the wood crib, wood panel and excelsior (shredded paper) tests. D Class fires are fires involving combustible metals such as sodium, magnesium, lithium and potassium. Halon is an extremely clean agent that leaves no residue, making it a good agent for use around computers and other sensitive equipment. What type of fires can be extinguished with a MET-L-X powder extinguisher? Class D fires – combustible metals: – These are fires caused by metals and chemicals such as magnesium, or potassium. A special class K extinguisher will safely smother the fire by turning the oil into a foam. No single extinguisher can be used to tackle every fire, and because each type of fire extinguisher has different classes of fire on which it is effective, selection can be a minefield. In an emergency, do you have the time to check? Specialised dry powders are available to control this class of fire. Class D – a fire started by flammable metals such as sodium, potassium and lithium; Class K – kitchen fires; Types of Fire Extinguishers . Amerex B571 - 30 lb Class D Copper Fire Extinguisher MODEL B571 contains a copper extinguishing agent specially developed by the U.S. Navy for fighting lithium and lithium alloy fires. What is the Wet Chemical Fire Extinguisher Label Colour? Class F Fires involve cooking oils and fats. Search for: Using a Dry Powder Extinguisher on a Class D Fire. Water extinguishers are for Class A fires only - they should not be used on Class B or C fires. Handle the three most common types of fire— those involving wood and paper, liquids and gases, and electrical equipment. It has a range of about 15 feet. Water and Foam. Class K: A Class K fire extinguisher is rated for use with cooking oil fires. Unit 5: Fire Extinguishers. Sodium chloride (Super-D, Met-L-X, M28, Pyrene Pyromet*) contains sodium chloride salt, which melts to form an oxygen-excluding crust over the metal. 1 About 2 Classes 3 OSHA Requirement 4 References 5 Links A fire extinguisher, flame extinguisher, or simply an extinguisher, is an active fire protection device used to extinguish or control small fires, often in emergency situations. Dry Powder (Class D Fires) MET-L-X POWDER (SODIUM CHLORIDE) FIRE EXTINGUISHERS Use for Class D Fires. The label colour for wet chemical fire extinguishers is Yellow. Fire extinguishers contain different chemicals, depending on the application. For use in environments with combustible metal hazards including magnesium, sodium, and potassium, this Class D fire extinguisher can help to fight spontaneous fires. Be sure that you are trained to use a fire extinguisher before you try to fight a fire. Use the correct fire extinguisher type to fight the fire. Knowing fire extinguisher types is important, so you can act fast. Blue Foam BA Not safe on other classes of fire. Water & Foam. Before this classification system, there was a classification of electrical fires, but since electricity itself is a cause of fire, these types of fires have been incorporated into the main classes. Therefore, these fires only usually occur in industrial settings. These are kept handy at places, namely fire points, in buildings, factories, public paces or transportation. The Class D graphic has a drawing of a gear on it. Class D Fires involving certain combustible metals, including potassium, ... make sure that you are using the right method or fire extinguisher to put out the fire, especially if electricity or burning fat is involved. Choosing fire extinguisher types for the relevant class of fire could literally be the difference between life and death. Whilst this type of fire extinguisher can be used in Class A fires, it is recommended that you have a foam or water extinguisher to tackle a fire that fits into this class. The UL rating for Class A and B extinguishers includes a number; the higher the number, the greater the firefighting capability. Only certain metals are flammable and examples of combustible metals include sodium, potassium, uranium, lithium, plutonium and calcium, with the most common Class D fires involve magnesium and titanium. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish. Black Carbon dioxide (E), B Beware of discharge pressure. The copper compound smothers the fire and provides and excellent heat sink for dissipating heat. Operation is similar to the ABC extinguisher. Of course, having a fire extinguisher that is equipped to deal with class B fires is certainly ideal, especially in a workplace environment vulnerable to Class B fires. For extinguisher use on a Class D fire, the relative effectiveness is detailed on the extinguisher nameplate for the specific combustible metal fire for which it is recommended. contents. UL ratings are numbers that refer to the extinguisher’s relative power against that class of fire. Skip to main content. Electrical fires – electrical equipment: – These are fires caused by electrical items, like heaters. Pull the pin, aim at the base of the fire, and sweep from side to side. Band Colour extinguisher type suitable for (class of fire) Comments All Red Water A Not safe on other classes of fire. Class B Fire Extinguishers For Class B Fires. Sand also can smother the fire. Class D fires – are fires involving burning metals (eg aluminium swarf) ... band or circle covering at least 5% of the surface area of the extinguisher in a second colour indicating the contents of the extinguisher. 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