What is Class K extinguisher?
Class K fire extinguishers are more effective in extinguishing cooking fires. They use wet chemical agents with a greater firefighting and cooling effect for this type of hazard. The applicable National Fire Protection Association (NFPA) standard is NFPA 10 – Standard for Portable Fire Extinguishers.
What is K class fire?
The NFPA describes class K fires as those fires that involve combustible cooking materials such as vegetable oils that are used in cooking operations. These types of fires tend to spread rapidly and can result in injuries and massive building damage.
What do you use for a Class K fire?
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 does class K stand for?
COMBUSTIBLE. COOKING. Class K – Cooking media. Class K fires involve cooking appliances that use cooking media such as vegetable or animal oils and fats.
Where are Class K fire used?
Class K fires are most likely to start in commercial kitchens, including restaurants but also office cafeterias, food trucks, bakeries, and other food businesses. These businesses should be equipped with Class K fire extinguishers as part of a complete fire protection plan.
Do I need a Class K extinguisher?
Wet chemical commercial hood suppression systems have proven to be the most effective method of extinguishing commercial cooking fires. Only the Class K Fire Extinguisher is compatible with wet chemical agents. Every commercial kitchen should have a Class K extinguisher to supplement the suppression system.
How do you extinguish 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.
What suppression agent is best recommended for Class K fires?
Wet Chemical fire extinguisher
Currently, the only effective extinguisher rated as Class K is the Wet Chemical fire extinguisher.
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.
What should not be sprayed when extinguishing Class K?
No other type of fire extinguisher will be successful at putting 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.
What color is a Class K fire extinguisher?
black
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.