Fire Extinguishers Essentials Chapter 6 Gwinnett County Fire Academy

Standards NFPA 10, Standard for Portable Fire Extinguishers NFPA 10, Standard for Portable Fire Extinguishers NFPA 1901, Standard for Automotive Fire Apparatus NFPA 1901, Standard for Automotive Fire Apparatus

Classification of Fire Class A Class A Class B Class B Class C Class C Class D Class D Class K Class K

Types Water Extinguisher Water Extinguisher AFFF AFFF Halon 1211/1301 Halon 1211/1301 Carbon Dioxide Carbon Dioxide Dry Chemical Dry Chemical Dry Powder Dry Powder

Water Extinguisher Pump Tank Pump Tank Stored Pressure Stored Pressure

Aqueous Film Forming Foam Class A and B Class A and B Methods Methods

Halon Montreal Protocol on Substances that Deplete the Ozone Layer. Montreal Protocol on Substances that Deplete the Ozone Layer.

Halon 1211 Halogenated Hydrocarbons- A chemical compound that contains carbon plus one or more chemicals from the halogen series (flourine, chlorine, bromine, or iodine). Halogenated Hydrocarbons- A chemical compound that contains carbon plus one or more chemicals from the halogen series (flourine, chlorine, bromine, or iodine). Haltron 1 Haltron 1

Halon 1301 Susceptible to wind. Susceptible to wind. Agent of choice in most total-flooding systems. Agent of choice in most total-flooding systems.

Carbon Dioxide Handheld and Wheeled Handheld and Wheeled Limited reach Limited reach Class B and C fires Class B and C fires

Dry Chemical Most common Most common Regular and Multipurpose Regular and Multipurpose (Sodium Bicarbonate, Potassium bicarbonate, Urea-potassium bicarbonate, Potassium chloride, Monoammonium phosphate). (Sodium Bicarbonate, Potassium bicarbonate, Urea-potassium bicarbonate, Potassium chloride, Monoammonium phosphate).

Dry Powder Class D only Class D only Gentle Blanket Gentle Blanket

Rating System Ordinary Combustibles Ordinary Combustibles Flammable Liquids Flammable Liquids Electrical Equipment Electrical Equipment Combustible Metals Combustible Metals A B C D

Rating Numbers Numbers –Used on Class A and B extinguishers only. –Ex. 2-A –Will extinguish twice as much fuel as a 1-A.

Pictographs Class A Class B Class C Class A Class B Class C

Practical

Selection Factors to consider Factors to consider Minimize the risk to life and property but select extinguisher that will extinguish the fire. Minimize the risk to life and property but select extinguisher that will extinguish the fire.

Using a Fire Extinguisher P- Pull the pin. P- Pull the pin. A- Aim the nozzle. A- Aim the nozzle. S- Squeeze the handle. S- Squeeze the handle. S- Sweep nozzle from side to side. S- Sweep nozzle from side to side.

Inspection Location Location Nozzle Nozzle Shell Shell Operating Instructions Operating Instructions Lock Pins and Tamper Seal Lock Pins and Tamper Seal Gauge Gauge Last Inspection Date Last Inspection Date

Obsolete Extinguishers Inverting extinguishers Inverting extinguishers Copper or brass Copper or brass Prohibited by OSHA (Jan. 1982) Prohibited by OSHA (Jan. 1982)

Any Questions???????? The End. The End.