FIRE CLASSIFICATIONS
EXTINGUISHER CLASSIFICATION
TYPES OF EXTINGUISHERS
FIRE EXTINGUISHER
OPERATION AND USE
FIRE EXTINGUISHER TESTING & INSPECTION
100
Involve ordinary combustibles
What is Class A Fires
100
From 1-A through 40-A
What is Class A
100
Found as both handheld/wheeled units; Most effective in Class B, C fires; Have limited reach; gas can be dispersed by wind
What is Carbon Dioxide (CO2) Extinguishers
100
P — Pull the pin; A — Aim the nozzle; S — Squeeze handles together; S — Sweep nozzle back and forth
What is the PASS method of application?
100
NFPA® 10 and most fire codes require portable extinguishers to be inspected at least
What is once / year
200
Involve flammable/?combustible liquids, gases, greases
What is Class B Fires
200
From 1-B through 640-B
What is Class B
200
For Class A-B-C fires and/or Class B-C fires; Commonly used today
What is Dry Chemical Extinguishers
200
In many cases, fire extinguishers can control or extinguish small fires in less time than it takes to deploy
What is a hoseline
200
Verify that extinguishers - Are in designated locations - Not tampered with or activated - No obvious damage/other condition
What is Fire Extinguisher Inspection
300
Involve Class A or B fires created by electrical energy
What is Class C Fires
300
No tests
What is Class C
300
Air-pressurized extinguishers; Useful for all types of small Class A fires
What is Stored-Pressure Water Extinguishers
300
Even though portable fire extinguishers may be found in many of the homes, apartments, and businesses that must be entered to extinguish fire, firefighters should only rely on those carried on
What is the fire appartaus
300
Servicing responsibility for fire extinguishers is that of
What is the property owner/building occupant
400
Can be identified by bright white emissions from combustion process; dry powder extinguishers work best
What is Class D Fires
400
Recognized by UL, ULC since 1996
What is Class K
400
Intended for use on small Class A fires only; All operate in similar manner; Equipped with single- or double-acting pump
What is Pump-Type Water Extinguishers
400
Smothering - Cooling - Chain breaking -Saponification
What is Fire Extinguishment Methods
400
NFPA® 10 describes procedures for _______________ testing of cylinders
What is hydrostatic
500
Examples are vegetable fats that burn at extremely high temperatures. Most fuels found in commercial kitchens; can also be found in private homes. Wet chemicals used in extinguishing systems
What is Class K Fires
500
Test fires vary
What is Class D
500
Designed as replacement for Halon 1211, use “clean agents” that discharge as rapidly evaporating liquids that leaves no residue; Cool/smother fires in Class A, B fuels Nonconductive so can be used on Class C; Approved by U.S. EPA
What is Clean Agent Extinguishers
500
Manual pump - Stored pressure - Pressure cartridge
What is Portable Extinguisher Expulsion Mechanisms
500
Included in Montreal Protocol - U.S. stopped producing at end of 1993 - Units may still be in service
What is Halon Fire Extinguishers
M
e
n
u