Ch. 3: Definitions Flashcards
A colorless, odorless, electrically nonconductive inert gas that is a suitable medium for extinguishing Class B and Class C fires
Carbon Dioxide
A powder composed of very small particles, usually sodium bicarbonate, potassium bicarbonate, or ammonium phosphate-based with added particulate material supplemented by special treatment to
provide resistance to packing, resistance to moisture absorption (caking), and the proper flow capabilities
Dry Chemical
Normally an aqueous solution of organic or inorganic salts or a combination thereof that forms an extinguishing agent.
Wet Chemical
Electrically non-conducting, volatile, or gaseous fire extinguishant that does not leave a residue upon
evaporation.
Clean Agent
A system that is constructed in a manner that does not introduce foreign material into the agent being recovered and has a means of visually inspecting the recovered agent for contaminants.
Dry Chemical Closed Recovery System
A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge and recovery containers so that none of the halogenated agent escapes to the atmosphere.
Halogenated Closed Recovery System
Cylinders (and cartridges) containing nitrogen, compressed air, carbon dioxide, or other gases at a pressure higher than 500 psi (3447 kPa) at 70°F (21°C).
High-Pressure Cylinder
Cylinders containing fire extinguishing agent (medium), nitrogen, compressed air, or other compressed gases at a service pressure of 500 psi (3447 kPa) or lower at 70°F (21°C).
Low-Pressure Cylinder
Solid materials in powder or granular form designed to extinguish Class D combustible metal fires by crusting, smothering, or heat-transferring means.
Dry Powder
Either a local alarm device to indicate when an extinguisher is removed from its designated location or a method of electronic communication (data transmission) between an in-place fire extinguisher and an electronic monitoring device/system.
Electronic Monitoring
Extinguisher retention device designed to mount and secure a specific extinguisher model onto various surfaces by incorporating releasable straps or bands to secure the fire extinguisher.
Extinguisher Bracket
An identifiable and readily accessible fire extinguisher housing device designed to store and protect fire equipment.
Extinguisher Cabinet
Extinguisher mounting device designed for mounting a specific extinguisher model onto stationary vertical surfaces.
Extinguisher Hanger
A quick check that a fire extinguisher is in its designated place, that it has not been actuated or tampered with, and that there is no obvious physical damage or condition to prevent its operation.
Extinguisher Inspection
A thorough examination of the fire extinguisher that is intended to give maximum assurance that a fire extinguisher will operate effectively and safely
and to determine if physical damage or condition will prevent its operation, if any repair or replacement is necessary, and if hydrostatic testing or internal maintenance is required.
Extinguisher Maintenance
A solution that will form an aqueous film on liquid fuels
Film-Forming Foam
A solution based on fluorinated surfactants plus foam stabilizers to produce a fluid aqueous film for suppressing liquid fuel vapors.
Aqueous Film-Forming Foam (AFFF)
A protein-foam solution that uses fluorinated surfactants to produce a fluid aqueous film for suppressing liquid fuel vapors.
Film-Forming Fluoroprotein Foam (FFFP)
Flammable liquids at least 1/4” deep
Flammable Liquids of Appreciable Depth
Hydrochlorofluorocarbon (HCFC), hydrofluorocarbon (HFC), perfluorocarbon (PFC), fluoroiodocarbon (FIC) types of agents, and other halocarbons that are found acceptable under the Environmental Protection Agency Significant New Alternatives Policy program.
Halocarbons
Bromochlorodifluoromethane (Halon 1211), bromotrifluoromethane (Halon 1301), and mixtures of Halon 1211 and Halon 1301 (Halon 1211/1301).
Halons
Pressure testing of the extinguisher to verify its strength against unwanted rupture.
Hydrostatic Testing
A water-based extinguishing agent that uses an alkali metal salt as a freezing point depressant.
Loaded Stream Charge
All steel shells other than stainless steel and steel shells used for high-pressure cylinders.
Mild Steel Shell
The normal operating pressure as indicated on the nameplate or cylinder of a fire extinguisher.
Extinguisher Service Pressure
The pressure shown on the nameplate at which a shell was tested at time of manufacture.
Factory Test Pressure
Fires resulting from liquids that are forced, pumped, or sprayed.
Pressurized Flammable Liquid Fires
The replacement of the extinguishing agent (also includes the expellant for certain types of fire extinguishers).
Recharging
Performing maintenance, recharging, or hydrostatic testing on a fire extinguisher.
Servicing
The actual walking distance from a point to the nearest fire extinguisher fulfilling hazard requirements.
Travel Distance
A concentrate that, when added to water, reduces the surface tension and increases its ability to penetrate and spread.
Wetting Agent
A fire extinguisher in which the expellant gas is in a separate container from the agent storage container.
Cartridge/Cylinder-Operated Fire Extinguisher
A fire extinguisher that is intended to be used one time and not capable of or intended to be recharged and returned to service.
Nonrechargeable (Nonrefillable) Fire Extinguisher
A portable device, carried or on wheels and operated by hand, containing an extinguishing agent that can be expelled under pressure for the purpose of suppressing or extinguishing a fire.
Portable Fire Extinguisher
A fire extinguisher capable of undergoing complete maintenance, including internal inspection of the pressure vessel, replacement of all substandard parts and seals, and hydrostatic testing.
Rechargeable (Refillable) Fire Extinguisher
A fire extinguisher in which the agent has sufficient vapor pressure at normal operating temperatures to expel itself.
Self-Expelling Fire Extinguisher
A fire extinguisher in which both the extinguishing agent and expellant gas are kept in a single container, and that includes a pressure indicator or gauge.
Stored-Pressure Fire Extinguisher
A fire extinguisher containing distilled or de-ionized water and employing a nozzle that discharges the agent in a fine spray.
Water Mist Fire Extinguisher
A fire extinguisher containing water-based agents, such as water, film-forming foam agents (AFFF, FFFP), antifreeze, loaded stream, and wet chemical.
Water-Type Fire Extinguisher
A portable fire extinguisher equipped with a carriage and wheels intended to be transported to the fire by one person.
Wheeled Fire Extinguisher
