Chapter 5 Terms Flashcards
Airborne pathogens
Disease causing microorganisms that are suspended in the air
Air purifying respirator APR
Respirator that removes contaminants by passing ambient air through a filter, cartridge, or canister; may have a full or partial face piece
Atmosphere supplying respirator ASR
Respirator that supplies, the user with an air supply from a source, independent of the ambient atmosphere
Auto cascade system
Completely automated stationary fill system that fills air cylinders to program pressure 
Cascade system
Three or more large, interconnected air cylinders, from which smaller SCB cylinders are recharged; the largest cylinders typically have a capacity of 300 ft.³
Close circuit self-contained breathing apparatus
SCB that recycles exhaled air; removes carbon dioxide and restores compressed, chemical, or liquid oxygen. Not approved for firefighting operations.
Coda federal regulations CFR
Rules and regulations published by executive agencies of the US federal government. These administrative laws are just as enforcible as federal laws, which must be passed by Congress
Emergency escape breathing support system EEBSS
Feature installed on some SBA, which allows two firefighters to breathe from one cylinder without removing their face pieces
End of service time indicator EOSTI
Warning device that alerts the user that the respiratory protection equipment is about to reach its limit, and that it is time to exit the contaminated atmosphere; it’s alarm may be audible, tactile, visual or any combination
Firefighter breathing air replenishment system FBARS
A standpipe for Air permanently installed within a high-rise building or a large horizontal structure. Air is pumped into the system by a fire departments, mobile air truck on the ground, providing an immediate and continuous supply of breathing air to the responders. Air bottles can then be refilled in matter of seconds at the fill station located throughout the high-rise building.
Fusee
Pyrotechnic flare sometimes used in wildland firefighting to start controlled burns
High efficiency, particulate air ( HEPA) filter
Respiratory filter that is certified to remove at least 99.97% of mono disperse particles of 0.3 µm in diameter
Open circuit self-contained breathing apparatus
SCB that allows exhaled Air to be discharged or vented into the atmosphere
Oxygen deficient atmosphere
Atmosphere containing less than the normal 19.5% oxygen at least 16% oxygen is needed to produce flames or sustain human life
Particulate
Very small particle of solid material, such as dust that is suspended in the atmosphere
Permissible exposure limit PEL
Maximum time weighted concentration at which 95% of exposed, healthy adults suffer no adverse effects over a 40 hour work week; an eight hour time weighted average unless otherwise noted. PELs are expressed in either parts per million or milligrams per cubic metre
Personal alert, safety system PASS
Electronic lack of motion sensor that sounds an alarm when a firefighter becomes motionless can also be manually activated
Point of no return
Point at which air in the SCB will last only long enough to exit hazardous atmosphere
Powered air purifying respirator PAPR
Motorized respirator that uses a filter to clean surrounding air, then delivers it to the where to breathe; typically includes a headpiece, breathing tube, and a blower/battery box that is worn on the belt
Proximity firefighting
Activities required for rescue, fire, suppression, and property conservation at fires that produce high radiant, conductive, or conductive heat; includes aircraft, hazardous, materials, transport, and storage tank fires
Qualitative fit test QLFT
Respirator fit test that measures the wearers response to a test agent, such as irritant smoke or odorous paper. If the wear to text the test agent, such as through smell or taste, the respirator fit is in adequate.
Quantitive test QNFT
Fit test in which instruments measure the amount of a test agent that has leaked into the respirator from the ambient atmosphere. If the leakage measures above a preset amount, the respirator fit is an adequate.
Remote pressure gauge
Pressure gauge that is not mounted on the regulator, but can be seen by the SCBA wearer. Commonly found on SCBA that have face piece mounted regulators.
Search line
Non-loadbearing rope to a safe, exterior location and attached to a firefighter during search operations to act as a safety line
Self-contained breathing apparatus
Respirator worn by the user that supplies a breathable atmosphere that is either carried in or generated by the apparatus and is independent of the ambient atmosphere. Respiratory protection is worn in all atmosphere that are considered to be immediately to life and health
Structural firefighters, protective clothing
General term for equipment, one by Fire and Emergency Services responders; includes helmet, coat, pants, boots, eye protection, gloves, protective hood, self-contained, breathing apparatus, and personal alert safety system
Supplied air respirator SAR
Atmosphere, supplying respirator, for which the source of breathing air is not designed to be carried by the user; not certified for firefighting operations
Thermal saturation
Point at which a liquid or solid can no longer absorb heat without undergoing a physical change, wither vaporization in liquids or pyrolization in solids
