Page 76 - 2018_IFC

DEFINITIONS

OXIDIZER. A material that readily yields oxygen or other [A] PERSON. An individual, heirs, executors, administrators
oxidizing gas, or that readily reacts to promote or initiate or assigns, and also includes a firm, partnership or corpora-
combustion of combustible materials and, if heated or con- tion, its or their successors or assigns, or the agent of any of
taminated, can result in vigorous self-sustained decomposi- the aforesaid.
tion.
[BG] PERSONAL CARE SERVICE. The care of persons
Class 4. An oxidizer that can undergo an explosive reac- who do not require medical care. Personal care involves
tion due to contamination or exposure to thermal or physi- responsibility for the safety of the persons while inside the
cal shock and that causes a severe increase in the burning building.
rate of combustible materials with which it comes into PESTICIDE. A substance or mixture of substances, includ-
contact. Additionally, the oxidizer causes a severe increase ing fungicides, intended for preventing, destroying, repelling
in the burning rate and can cause spontaneous ignition of or mitigating pests and substances or a mixture of substances
combustibles.
intended for use as a plant regulator, defoliant or desiccant.
Class 3. An oxidizer that causes a severe increase in the Products defined as drugs in the Federal Food, Drug and Cos-
burning rate of combustible materials with which it comes metic Act are not pesticides.
in contact. [BE] PHOTOLUMINESCENT. Having the property of
Class 2. An oxidizer that will cause a moderate increase in emitting light that continues for a length of time after exci-
the burning rate of combustible materials with which it tation by visible or invisible light has been removed.
comes in contact. PHYSICAL HAZARD. A chemical for which there is evi-
Class 1. An oxidizer that does not moderately increase the dence that it is a combustible liquid, cryogenic fluid, explo-
burning rate of combustible materials. sive, flammable (solid, liquid or gas), organic peroxide (solid
or liquid), oxidizer (solid or liquid), oxidizing gas, pyrophoric
OXIDIZING CRYOGENIC FLUID. An oxidizing gas in (solid, liquid or gas), unstable (reactive) material (solid, liq-
the cryogenic state.
uid or gas) or water-reactive material (solid or liquid).
OXIDIZING GAS. A gas that can support and accelerate PHYSIOLOGICAL WARNING THRESHOLD. A con-
combustion of other materials more than air does. centration of airborne contaminants, normally expressed in
OZONE-GAS GENERATOR. Equipment which causes the parts per million (ppm) or milligrams per cubic meter (mg/
3
production of ozone. m ), that represents the concentration at which persons can
sense the presence of the contaminant due to odor, irritation
[BE] PANIC HARDWARE. A door-latching assembly or other quick-acting physiological responses. When used in
incorporating a device that releases the latch upon the appli- conjunction with the permissible exposure limit (PEL), the
cation of a force in the direction of egress travel. See also physiological warning threshold levels are those consistent
“Fire exit hardware.”
with the classification system used to establish the PEL. See
PASS-THROUGH. An enclosure installed in a wall with a the definition of “Permissible exposure limit (PEL).”
door on each side that allows chemicals, HPM, equipment, PIER. A structure built over the water, supported by pillars
and parts to be transferred from one side of the wall to the
or piles, and used as a landing place, pleasure pavilion or sim-
other. ilar purpose.
[BG] PENTHOUSE. An enclosed, unoccupied rooftop PLACE OF RELIGIOUS WORSHIP. See “Religious wor-
structure used for sheltering mechanical and electrical equip- ship, place of.”
ment, tanks, elevators and related machinery, and vertical
shaft openings. [M] PLENUM. An enclosed portion of the building struc-
ture, other than an occupiable space being conditioned, that is
PERMISSIBLE EXPOSURE LIMIT (PEL). The maxi- designed to allow air movement and thereby serve as part of
mum permitted 8-hour time-weighted-average concentration an air distribution system.
of an airborne contaminant. The exposure limits to be utilized
are those published in DOL 29 CFR Part 1910.1000. The PLOSOPHORIC MATERIAL. Two or more unmixed,
Recommended Exposure Limit (REL) concentrations pub- commercially manufactured, prepackaged chemical sub-
lished by the U.S. National Institute for Occupational Safety stances including oxidizers, flammable liquids or solids, or
and Health (NIOSH), Threshold Limit Value-Time Weighted similar substances that are not independently classified as
Average (TLV-TWA) concentrations published by the Amer- explosives but which, when mixed or combined, form an
ican Conference of Governmental Industrial Hygienists explosive that is intended for blasting.
(ACGIH), Workplace Environmental Exposure Level PLYWOOD AND VENEER MILLS. Facilities where raw
(WEEL) Guides published by the American Industrial wood products are processed into finished wood products,
Hygiene Association (AIHA), and other approved, consistent including waferboard, oriented strandboard, fiberboard, com-
measures are allowed as surrogates for hazardous substances posite wood panels and plywood.
not listed in DOL 29 CFR Part 1910.1000.
PORTABLE OUTDOOR FIREPLACE. A portable, out-
[A] PERMIT. An official document or certificate issued by door, solid-fuel-burning fireplace that may be constructed of
the fire code official that authorizes performance of a speci- steel, concrete, clay or other noncombustible material. A por-
fied activity. table outdoor fireplace may be open in design, or may be

2018 INTERNATIONAL FIRE CODE ® 43
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