In the United States, its black.
Flammable oil and gas fires are class B fires, needing a class B extinguisher.
For a grease fire, use a fire extinguisher specifically labeled for grease fires or smother the fire by placing a metal lid over the pan. For an electrical fire, turn off the power source if safe to do so and use a Class C fire extinguisher. For a wood or paper fire, use a Class A fire extinguisher or water to extinguish the flames.
There are several categories of fire extinguishers. It depends on where the extinguisher is likely to be used and on what type of fire is to be expected. For example: a soda and water extinguisher is commonly used for general type fires. But, due to the risk of being electrocuted, a soda and water extinguisher would be dangerous to use round high voltage electrical equipment - so a carbon dioxide extinguisher would be used instead. On oil fires, a foam extinguisher would be best, as a soda water extinguisher would simply spread the area of the oil fire, and even increase the intensity of the flames, while the foam would smother the flames, cutting off the oxygen to feed the fire.
Class B: Class B extinguishers are used on fires involving flammable liquids, such as grease, gasoline, oil, and oil-based paints.
No, foam is not recommended for oil fires as it can actually spread the fire and cause it to flare up. Foam is better suited for extinguishing class A and B fires, such as wood or paper fires. For oil fires, it is best to use a fire extinguisher specifically designed for class K (kitchen) fires or a fire suppression system designed for commercial kitchens.
A Class A, B, C, or ABC fire extinguisher works wonders on several different types of fires. A is good for wood, paper, etc. B is good for liquids. C is good for electrical fires. Do not use a Class D, for these are best on metals (such as magnesium).
Soda water is used on general fires (wood, paper, etc). Foam is used on petrol or oil fires, to avoid spreading the fire. Carbon dioxide is used where there is electrical equipment, and there is a risk of electrocution. Then there is dry powder which is classed as a multi-purpose extinguisher.
Soda water is used on general fires (wood, paper, etc). Foam is used on petrol or oil fires, to avoid spreading the fire. Carbon dioxide is used where there is electrical equipment, and there is a risk of electrocution. Then there is dry powder which is classed as a multi-purpose extinguisher.
Class B extinguishers are used for liquid fires, typically gasoline and oil fires. Extinguishers rated ABC will be effective against all three classes, but seldom as effective as a dedicated Class B extinguisher.
Foam spray extinguishers are not recommended for fires involving electricity, but are safer than water if inadvertently sprayed onto live electrical apparatus.
Class B fires are fires in flammable liquids such as gasoline, petroleum oil and paint. Class B fires also include flammable gases such as propane and butane.Class B fires do not include fires involving cooking oils and grease (these are now Class K fires).
Liquid (oil) fires.