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What kind of fire extinguisher is best to use for a fire in laboratory equipment?
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What kind of fire extinguisher is best to use for a fire in laboratory equipment?

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Liquid carbon dioxide fire extinguishers should be used when laboratory instruments catch fire.


The specific methods of laboratory fire extinguishing methods are as follows:


1. Cooling fire extinguishing capacity


The principle of this fire extinguishing method is to spray the fire extinguishing agent directly on the burning object to reduce the temperature of combustion below the ignition point and stop the combustion. Or spray the fire extinguishing agent on the material near the fire source to prevent the formation of new fire spots due to the heat radiation of the flame. Cooling fire extinguishing method is one of the main methods of extinguishing fire. Water and carbon dioxide are commonly used as fire extinguishing agents to cool down and extinguish fire. The extinguishing agent does not participate in the chemical reaction in the combustion process during the fire extinguishing process. This method is a physical fire extinguishing method.

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2. Isolation and fire extinguishing method


The isolation fire extinguishing method is to isolate or remove the burning material from the surrounding unburned combustible material, interrupt the supply of combustible material, and stop the combustion due to lack of combustible material.

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3. Suffocation fire extinguishing method


The suffocation fire extinguishing method is a fire extinguishing method that prevents the air from flowing into the combustion zone or uses the incombustible zone or dilutes the air with incombustible substances, so that the burning substance cannot get enough oxygen to extinguish. The specific methods are: 1. Cover the burning material with incombustible or non-combustible substances such as sand, cement, wet sack, wet quilt 2. Spray the fire extinguishing agent such as water mist, dry powder, foam, etc. to cover the burning material 3. Water vapor, nitrogen, carbon dioxide Inject inert gas into fire containers, equipment 4, airtight buildings, equipment and holes 5, spray non-combustible gas or non-combustible liquid (such as carbon dioxide, nitrogen, carbon tetrachloride, etc.) into the combustion area or burn.


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