Page 62 - 2018_IFC

DEFINITIONS

or dust) in air exceeds 25 percent of their lower flammable FLUE SPACES.
limit (LFL) because of the flammable finish processes opera- Longitudinal flue space. The flue space between rows of
tion. It shall include: storage perpendicular to the direction of loading.
1. The interior of spray booths. Transverse flue space. The space between rows of stor-
2. The interior of ducts exhausting from spraying pro- age parallel to the direction of loading.
cesses.
FLUIDIZED BED. A container holding powder coating
3. Any area in the direct path of spray or any area contain- material that is aerated from below so as to form an air-sup-
ing dangerous quantities of air-suspended powder, ported expanded cloud of such material through which the
combustible residue, dust, deposits, vapor or mists as a preheated object to be coated is immersed and transported.
result of spraying operations.
FOAM-EXTINGUISHING SYSTEM. A special system
4. The area in the vicinity of dip tanks, drain boards or discharging a foam made from concentrates, either mechani-
associated drying, conveying or other equipment during cally or chemically, over the area to be protected.
operation or shutdown periods.
[BE] FOLDING AND TELESCOPIC SEATING. Tiered
The fire code official is authorized to determine the extent seating having an overall shape and size that is capable of
of the flammable vapor area, taking into consideration the being reduced for purposes of moving or storing and is not a
material characteristics of the flammable materials, the building element.
degree of sustained ventilation and the nature of the opera- [BG] FOSTER CARE FACILITIES. Facilities that provide
tions. 1
care to more than five children, 2 / years of age or less.
2
FLAMMABLE VAPORS OR FUMES. The concentration FUEL CELL POWER SYSTEM, STATIONARY. A sta-
of flammable constituents in air that exceeds 25 percent of tionary energy generation system that converts the chemical
their lower flammable limit (LFL).
energy of a fuel and oxidant to electric energy (DC or AC
FLASH POINT. The minimum temperature in degrees Fahr- electricity) by an electrochemical process.
enheit at which a liquid will give off sufficient vapors to form Field-fabricated fuel cell power system. A stationary
an ignitable mixture with air near the surface or in the con- fuel cell power system that is assembled at the job site and
tainer, but will not sustain combustion. The flash point of a is not a preengineered or prepackaged factory-assembled
liquid shall be determined by appropriate test procedure and fuel cell power system.
apparatus as specified in ASTM D56, ASTM D93 or ASTM
D3278. Preengineered fuel cell power system. A stationary fuel
cell power system consisting of components and modules
FLEET VEHICLE MOTOR FUEL-DISPENSING that are produced in a factory, and shipped to the job site
FACILITY. That portion of a commercial, industrial, gov- for assembly.
ernmental or manufacturing property where liquids used as
fuels are stored and dispensed into the fuel tanks of motor Prepackaged fuel cell power system. A stationary fuel
vehicles that are used in connection with such businesses, by cell power system that is factory assembled as a single,
persons within the employ of such businesses. complete unit and shipped as a complete unit for installa-
tion at the job site.
[BE] FLIGHT. A continuous run of rectangular treads,
winders or combination thereof from one landing to another. FUEL LIMIT SWITCH. A mechanism, located on a tank
vehicle, that limits the quantity of product dispensed at one
FLOAT. A floating structure normally used as a point of time.
transfer for passengers and goods, or both, for mooring pur-
poses. FUMIGANT. A substance which by itself or in combination
with any other substance emits or liberates a gas, fume or
[BE] FLOOR AREA, GROSS. The floor area within the vapor utilized for the destruction or control of insects, fungi,
inside perimeter of the exterior walls of the building under vermin, germs, rats or other pests, and shall be distinguished
consideration, exclusive of vent shafts and courts, without from insecticides and disinfectants which are essentially
deduction for corridors, stairways, ramps, closets, the thick- effective in the solid or liquid phases. Examples are methyl
ness of interior walls, columns or other features. The floor bromide, ethylene dibromide, hydrogen cyanide, carbon
area of a building, or portion thereof, not provided with sur- disulfide and sulfuryl fluoride.
rounding exterior walls shall be the usable area under the hor-
izontal projection of the roof or floor above. The gross floor FUMIGATION. The utilization within an enclosed space of
area shall not include shafts with no openings or interior a fumigant in concentrations that are hazardous or acutely
courts. toxic to humans.
[BE] FLOOR AREA, NET. The actual occupied area not FURNACE CLASS A. An oven or furnace that has heat uti-
including unoccupied accessory areas such as corridors, stair- lization equipment operating at approximately atmospheric
ways, ramps, toilet rooms, mechanical rooms and closets. pressure wherein there is a potential explosion or fire hazard

2018 INTERNATIONAL FIRE CODE ® 29
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