A Class K fire extinguisher uses a fine wet mist consisting of an alkaline mixture, such as potassium acetate, potassium carbonate, or potassium citrate that forms a soapy foam as it is applied to the cooking oil or other substance, quenching the steam, vapors, and the fire’s risk of re-ignition.
What color is a Class K fire extinguisher?
black hexagon
The geometric symbol indicating Class D is a yellow decagon. Class K fire extinguishers are for fires that involve cooking oils, trans-fats, or fats in cooking appliances and are typically found in restaurant and cafeteria kitchens. The geometric symbol indicating Class K is a black hexagon.
Can you use an ABC fire extinguisher on a Class K fire?
Class K Fire Extinguishers for Commercial Kitchen Fires Even though the ABC fire extinguisher may be able to temporarily put out the cooking fire, the class K fire extinguisher with it’s wet chemical agent will help make sure it does not reignite.
Which element does not need to be present for fire to exist?
Oxygen, heat, and fuel are frequently referred to as the “fire triangle.” Add in the fourth element, the chemical reaction, and you actually have a fire “tetrahedron.” The important thing to remember is: take any of these four things away, and you will not have a fire or the fire will be extinguished.
How do you put out a Class K fire?
Class K fires can only be extinguished with Class K extinguishers, and should never be sprayed with water as this can increase the spread of the cooking liquids.
How do you extinguish a Class K fire?
What type of fire does class K put out?
Commonly used in restaurant kitchens, class K fire extinguishers can effectively put out fires caused by cooking fats, greases, and oils. They use a process called saponific a tion by releasing an alkaline agent to create a foam that traps vapors and puts the fire out.
What are Class K fires caused by?
Class K fires are most often caused by cooking oils and fat that burst into flame on the stovetop, in the oven or on the grill. There is also a risk of causing such a fire when these substances are overheated in the microwave.
What is a Class K extinguisher used for?
Class K – These fire extinguishers are used on fires involving animal oils, vegetable oils, or fats used in cooking appliances. These fire extinguishers are used in commercial kitchens such as cafeterias, restaurants, and by caterers.
What are the different classifications of fire?
Fires are classified by the British Standard EN 2:1992 Classification of Fires. However, for all the practical purposes, there are five main classes of the fire – A, B, C, D, and F, plus fires involving the electrical equipment.