A Dry Chemical/Dry Powder extinguisher can be identified by its all over red colour, with a white band. Remember the PASS acronym to ensure a safe and effect…
The idea behind a dry chemical fire extinguisher is to blanket the fuel with an inert solid (similar to dirt or sand). A dry chemical extinguisher sprays a very fine powder of sodium bicarbonate (NaHCO3, baking soda), potassium bicarbonate (KHCO3, nearly identical to baking soda), or monoammonium phosphate ((NH4)H2PO4).
Fire Safety | Portable Fire Extinguishers | Dry Chemical …
As the dry chemical is expelled, sweep the hose from side to side. As the fire closest to you goes out, you may move closer to the fire and continue the sweeping motion until the fire is extinguished. Continue discharging to prevent …
People Also Ask how to use a dry chemical fire extinguisher
What does the dry chemical in a fire extinguisher do?
A Fuel – some sort of combustible solid, liquid or gasOxygen – to react with the fuelHeat – there must be enough heat to get the fuel above its flash point. There is paper on your desk right now that is surrounded by oxygen. …
What is the purpose of a dry chemical fire extinguisher?
ABC extinguishers are red and range in size from 5 lbs to 20 lbs on campus. …It is extremely important to identify which types of dry chemical extinguishers are located in your area.Read the labels and know their locations! …
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What fire extinguisher do you use on a chemical fire?
These extinguishers have one of the following propellant sprays:Carbon DioxideFoamDry Chemical PowderWet ChemicalClean AgentWater / FoamWater MistHalotron or Halon (no longer made for fire extinguishers)
How to inspect dry chemical or dry powder fire extinguishers?
Water and foam extinguishers, which should only be used on class A fires (fueled by ordinary flammables, such as paper or wood). …Carbon dioxide extinguishers. …Dry chemical fire extinguishers, which interrupt the chemical reactions that cause a fire. …
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Dry Chemical – How to use a fire extinguisher training Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher