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HIGH-PILED COMBUSTIBLE STORAGE

3201.4 Fire safety and evacuation plan. Where required by amount of Group A plastics shall be limited in accordance
the Section 403, a fire safety and evacuation plan shall be with Section 3203.9.
submitted at the time of permit application for review and 3203.5 Class IV commodities. Class IV commodities are
approval. A copy of the approved fire safety and evacuation Class I, II or III products containing Group A plastics in ordi-
plan shall be maintained on the premises in an approved loca- nary corrugated cartons; Class I, II and III products with
tion. Group A plastic packaging; Group B plastics; and free-flow-
ing Group A plastics with or without wood pallets. The total
amount of nonfree-flowing Group A plastics shall be limited
SECTION 3202 in accordance with Section 3203.9.
DEFINITIONS 3203.6 High-hazard commodities. High-hazard commodi-
3202.1 Definitions. The following terms are defined in Chap- ties are products presenting special fire hazards beyond those
ter 2: of Class I, II, III or IV. Group A plastics not otherwise classi-
fied are included in this class.
ARRAY.
3203.7 Classification of plastics. Plastics shall be designated
ARRAY, CLOSED.
as Group A, B or C in accordance with Sections 3203.7.1
AUTOMATED RACK STORAGE. through 3203.7.3.
BIN BOX. 3203.7.1 Group A plastics. Group A plastics are plastic
COMMODITY. materials having a heat of combustion that is much higher
than that of ordinary combustibles, and a burning rate
EARLY SUPPRESSION FAST-RESPONSE (ESFR)
SPRINKLER. higher than that of Group B plastics.
3203.7.2 Group B plastics. Group B plastics are plastic
EXPANDED PLASTIC.
materials having a heat of combustion and a burning rate
EXTRA-HIGH-RACK COMBUSTIBLE STORAGE. higher than that of ordinary combustibles, but not as high
HIGH-PILED COMBUSTIBLE STORAGE. as those of Group A plastics.
HIGH-PILED STORAGE AREA. 3203.7.3 Group C plastics. Group C plastics are plastic
materials having a heat of combustion and a burning rate
LONGITUDINAL FLUE SPACE.
similar to those of ordinary combustibles.
MANUAL STOCKING METHODS.
3203.8 Examples of commodity classification. Table
MECHANICAL STOCKING METHODS. 3203.8 shall be used to determine the commodity classifica-
SHELF STORAGE. tion for various products and materials. Products not found in
the list shall be classified based on the classification descrip-
SOLID SHELVING.
tions in Sections 3203.2 through 3203.6 and the products they
TRANSVERSE FLUE SPACE. most nearly represent in Table 3203.8. Table 3203.8 consid-
ers the product and the packaging if listed with the item.
Products with additional packaging consisting of Group A
SECTION 3203 plastics shall be classified in accordance with Section 3203.9.
COMMODITY CLASSIFICATION
The commodity classifications are based on products with,
3203.1 Classification of commodities. Commodities shall be or without, wood pallets. Where plastic pallets are used, the
classified as Class I, II, III, IV or high hazard in accordance commodity classification shall be modified in accordance
with Sections 3203.2 through 3203.10.3. Materials listed with Section 3203.10.
within each commodity classification are assumed to be 3203.9 Limited quantities of Group A plastics in mixed
unmodified for improved combustibility characteristics. Use
of flame-retarding modifiers or the physical form of the mate- commodities. Figures 3203.9(1) and 3203.9(2) shall be used
rial could change the classification. to determine the commodity classification based on the quan-
tity of Group A plastics in the following situations:
3203.2 Class I commodities. Class I commodities are non-
combustible products in ordinary corrugated cartons with or 1. The product is not listed in Table 3203.8 and contains
without single-thickness dividers, or in ordinary paper wrap- Group A plastics.
pings with or without wood pallets. The amount of Group A 2. The commodity contains Group A plastics and is not
plastics shall be limited in accordance with Section 3203.9. classified as high-hazard in Table 3203.8.
3203.3 Class II commodities. Class II commodities are 3. The product listing in Table 3203.8 does not specifi-
Class I products in slatted wooden crates, solid wooden cally include packaging, and the packaging material
boxes, multiple-thickness paperboard cartons or equivalent includes Group A plastics.
combustible packaging material with or without wood pallets. 3203.9.1 Classifying mixed commodities with limited
The amount of Group A plastics shall be limited in accor- Group A plastics. The percentage of Group A plastics
dance with Section 3203.9. determined in accordance with Section 3203.9.2 shall be
3203.4 Class III commodities. Class III commodities are used in Figures 3203.9(1) and 3203.9(2). Results from
products of wood, paper, natural fiber cloth, or Group C plas- Figure 3203.9(1) must be compared to results from Figure
tics or products thereof, with or without wood pallets. The 3203.9(2) and the commodity will be classified with the
highest commodity classification.

308 2018 INTERNATIONAL FIRE CODE ®
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