【Daily Question No. 364】December 31, 2018

Dry powder fire extinguishers can be used to extinguish oil fires. A dry powder fire extinguisher is a type of fire extinguisher that contains extremely fine powdered extinguishing agent capable of flowing like water. During use, it sprays the agent under the pressure of carbon dioxide inside, allowing it to effectively extinguish incipient fires. To determine what type of fire a fire extinguisher can be used to put out, one can check the instructions printed on the container; fire extinguishers without such instructions are illegal products. Fire classification: In China, fires are classified into seven categories—A, B, C, D, E, F, and K—based on the type of combustible material and its burning characteristics. Class A fire: refers to fires involving solid materials. This substance usually has the properties of organic matter and generally produces hot embers when burned. Such as fires involving wood, coal, cotton, wool, linen, paper, etc. Class B fires: refer to fires involving liquids or fusible solid materials. Fires involving kerosene, diesel, crude oil, methanol, ethanol, asphalt, paraffin, etc. Class C fire: refers to gas fires. Such as fires involving gas, natural gas, methane, ethane, propane, hydrogen, etc. Class D fire: refers to fires involving metals. Such as fires involving potassium, sodium, magnesium, aluminum-magnesium alloys, etc. Class E fire: Fire involving electrical current. A fire in which an object burns due to being charged. Class F fire: Fires involving cooking materials in cooking appliances (such as animal and vegetable fats). Class K fire: Fires involving cooking oils. The types of fires that can be extinguished with dry powder fire extinguishers are Class BC and Class ABC (with Class B being included in both), so dry powder fire extinguishers can be used to put out oil fires.

Let’s go. Sorry, I typed “ Let’s go instead of the correct term;P Let me correct that – it’s the correct one