Fire Extinguisher ABC

These extinguishers typically use dry chemical agents, such as monoammonium phosphate, to suppress flames by interrupting the chemical reaction of the fire triangle (heat, fuel, and oxygen).

Key Features:

• Classification by Fire Type: Fire extinguishers are classified based on the types of fires they can effectively combat. These classifications often include:

• • Class A: Ordinary combustibles like wood, paper, and cloth.
  • Class B: Flammable liquids such as gasoline, oil, and grease.
  • Class C: Electrical fires involving energized electrical equipment.
  • Class D: Combustible metals like magnesium and titanium.
  • Class K: Cooking oils and fats typically found in commercial kitchens.
• Types of Fire Extinguishers: Common types of fire extinguishers include:

• • Water and foam extinguishers (Class A fires).
  • CO2 extinguishers (Class B and C fires).
  • Dry chemical extinguishers (Class A, B, and C fires).
  • Wet chemical extinguishers (Class K fires).
  • Class D extinguishers for metal fires.
• Pressure Indicator: Most fire extinguishers have a pressure gauge or indicator to show whether the extinguisher is fully charged and ready for use.
• Operating Mechanism: Fire extinguishers typically operate by squeezing a handle to release the extinguishing agent, which is expelled through a nozzle or hose.
• Size and Capacity: Fire extinguishers come in various sizes, ranging from small units suitable for home use to larger units for industrial or commercial settings. The capacity of extinguishing agents varies accordingly.
• Maintenance and Inspection: Regular maintenance and inspection are crucial to ensure that fire extinguishers are operational and compliant with safety standards. This includes periodic checks, refills, and servicing by qualified personnel.
• User Instructions: Each fire extinguisher includes clear instructions on proper usage, typically summarized with the acronym PASS:
• • Pull the pin.
  • Aim at the base of the fire.
  • Squeeze the handle.
  • Sweep from side to side.