Page 80 - 2018_IFC

DEFINITIONS

SOLVENT OR LIQUID CLASSIFICATIONS. A method STAIRWAY, INTERIOR EXIT. See “Interior Exit Stair-
for classifying solvents or liquids according to the following way.”
classes: STAIRWAY, SCISSOR. See “Scissor stairway.”
Class I solvents. Liquids having a flash point below [BE] STAIRWAY, SPIRAL. A stairway having a closed
100°F (38°C).
circular form in its plan view with uniform section-shaped
Class II solvents. Liquids having a flash point at or above treads attached to and radiating from a minimum-diameter
100°F (38°C) and below 140°F (60°C). supporting column.
Class IIIA solvents. Liquids having a flash point at or STANDBY POWER SYSTEM. A source of automatic elec-
above 140°F (60°C) and below 200°F (93°C). tric power of a required capacity and duration to operate
required building, hazardous materials or ventilation systems
Class IIIB solvents. Liquids having a flash point at or
above 200°F (93°C). in the event of a failure of the primary power. Standby power
systems are required for electrical loads where interruption of
Class IV solvents. Liquids classified as nonflammable. the primary power could create hazards or hamper rescue or
SPECIAL AMUSEMENT BUILDING. A building that is fire-fighting operations.
temporary, permanent or mobile that contains a device or sys- STANDPIPE, TYPES OF. Standpipe types are as follows:
tem that conveys passengers or provides a walkway along,
around or over a course in any direction as a form of amuse- Automatic dry. A dry standpipe system, normally filled
ment arranged so that the egress path is not readily apparent with pressurized air, that is arranged through the use of a
due to visual or audio distractions or an intentionally con- device, such as a dry pipe valve, to admit water into the
founded egress path, or is not readily available because of the system piping automatically upon the opening of a hose
mode of conveyance through the building or structure. valve. The water supply for an automatic dry standpipe
system shall be capable of supplying the system demand.
[A] SPECIAL EXPERT. An individual who has demon-
strated qualifications in a specific area, outside the practice of Automatic wet. A wet standpipe system that has a water
architecture or engineering, through education, training and supply that is capable of supplying the system demand
experience. automatically.
Manual dry. A dry standpipe system that does not have a
SPECIAL INDUSTRIAL EXPLOSIVE DEVICE. An
explosive power pack containing an explosive charge in the permanent water supply attached to the system. Manual
form of a cartridge or construction device. The term includes dry standpipe systems require water from a fire depart-
but is not limited to explosive rivets, explosive bolts, explo- ment pumper to be pumped into the system through the
sive charges for driving pins or studs, cartridges for explo- fire department connection in order to supply the system
sive-actuated power tools and charges of explosives used in demand.
automotive air bag inflators, jet tapping of open hearth fur- Manual wet. A wet standpipe system connected to a water
naces and jet perforation of oil well casings. supply for the purpose of maintaining water within the
system but which does not have a water supply capable of
SPRAY BOOTH. A mechanically ventilated appliance of
varying dimensions and construction provided to enclose or delivering the system demand attached to the system.
accommodate a spraying operation and to confine and limit Manual wet standpipe systems require water from a fire
the escape of spray vapor and residue and to exhaust it safely. department pumper (or the like) to be pumped into the sys-
tem in order to supply the system demand.
SPRAY ROOM. A room designed to accommodate spraying
operations, constructed in accordance with the International Semiautomatic dry. A dry standpipe system that is
Building Code. arranged through the use of a device, such as a deluge
valve, to admit water into the system piping upon activa-
SPRAYING SPACE. An area in which dangerous quantities tion of a remote control device located at a hose connec-
of flammable vapors or combustible residues, dusts or depos- tion. A remote control activation device shall be provided
its are present due to the operation of spraying processes. The at each hose connection. The water supply for a semiauto-
fire code official is authorized to define the limits of the matic dry standpipe system shall be capable of supplying
spraying space in any specific case. the system demand.
[BE] STAIR. A change in elevation, consisting of one or STANDPIPE SYSTEM, CLASSES OF. Standpipe system
more risers. classes are as follows:
[BE] STAIRWAY. One or more flights of stairs, either exte- Class I system. A system providing 2 / -inch (64 mm)
1
2
rior or interior, with the necessary landings and platforms hose connections to supply water for use by fire depart-
connecting them, to form a continuous and uninterrupted pas- ments and those trained in handling heavy fire streams.
sage from one level to another. 1
Class II system. A system providing 1 / -inch (38 mm)
2
STAIRWAY, EXIT ACCESS. See “Exit access stairway.”
hose stations to supply water for use primarily by the
STAIRWAY, EXTERIOR EXIT. See “Exterior exit stair- building occupants or by the fire department during initial
way.” response.

2018 INTERNATIONAL FIRE CODE ® 47
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