Page 474 - 2018_IFC

FLAMMABLE AND COMBUSTIBLE LIQUIDS

5704.3.8.1 Quantities and storage arrangement. The sufficient number to reach all liquid storage areas and
total quantities of liquids in a liquid storage warehouse shall be in accordance with Section 903 or 905.
shall not be limited. The arrangement of storage shall 5704.4 Outdoor storage of containers and portable tanks.
be in accordance with Table 5704.3.6.3(2) or Storage of flammable and combustible liquids in closed con-
5704.3.6.3(3). tainers and portable tanks outside of buildings shall be in
5704.3.8.1.1 Mixed storage. Mixed storage shall be accordance with Section 5703 and Sections 5704.4.1 through
in accordance with Section 5704.3.7.2.1. 5704.4.8. Capacity limits for containers and portable tanks
shall be in accordance with Section 5704.3.
5704.3.8.1.2 Separation and aisles. Separation and
aisles shall be in accordance with Section 5704.4.1 Plans. Storage shall be in accordance with
5704.3.7.2.2. approved plans.
5704.3.8.2 Spill control and secondary containment. 5704.4.2 Location on property. Outdoor storage of liq-
Liquid storage warehouses shall be provided with spill uids in containers and portable tanks shall be in accor-
control and secondary containment as set forth in Sec- dance with Table 5704.4.2. Storage of liquids near
tion 5004.2. buildings located on the same lot shall be in accordance
with this section.
5704.3.8.3 Ventilation. Liquid storage warehouses
storing containers greater than 5 gallons (19 L) in 5704.4.2.1 Mixed liquid piles. Where two or more
capacity shall be ventilated at a rate of not less than classes of liquids are stored in a single pile, the quantity
3
2
0.25 cfm per square foot (0.075 m /s • m ) of floor area in the pile shall not exceed the smallest of maximum
over the storage area. quantities for the classes of material stored.
5704.3.8.4 Automatic sprinkler systems. Liquid stor- 5704.4.2.2 Access. Storage of containers or portable
age warehouses shall be protected by automatic sprin- tanks shall be provided with fire apparatus access roads
kler systems installed in accordance with Chapter 9 and in accordance with Chapter 5.
Tables 5704.3.6.3(4) through 5704.3.6.3(7) and Table 5704.4.2.3 Security. The storage area shall be pro-
5704.3.7.5.1, or Sections 16.4.1 through 16.4.3, 16.5.1 tected against tampering or trespassers where necessary
through 16.5.2.12, and Tables 16.5.2.1 through and shall be kept free from weeds, debris and other
16.5.2.12 and Figures 16.4.1(a) through 16.4.1(c) of combustible materials not necessary to the storage.
NFPA 30. In-rack sprinklers shall also comply with
NFPA 13. 5704.4.2.4 Storage adjacent to buildings. Not more
than 1,100 gallons (4163 L) of liquids stored in closed
Automatic foam-water systems and automatic containers and portable tanks is allowed adjacent to a
AFFF water sprinkler systems shall not be used except building located on the same premises and under the
where approved.
same management, provided that one of the following
Protection criteria developed from fire modeling or requirements is met:
full-scale fire testing conducted at an approved testing 1. The building does not exceed one story in height.
laboratory are allowed in lieu of the protection as Such building shall be of fire-resistance-rated
shown in Tables 5704.3.6.3(2) through 5704.3.6.3(7) construction with noncombustible exterior sur-
and Table 5704.3.7.5.1 where approved.
faces or noncombustible construction and shall
5704.3.8.5 Warehouse hose lines. In liquid storage be used principally for the storage of liquids.
1
warehouses, either 1 / -inch (38 mm) lined or 1-inch
2 2. The exterior building wall adjacent to the storage
(25 mm) hard rubber hose lines shall be provided in
area shall have a fire-resistance rating of not less
TABLE 5704.4.2
OUTDOOR LIQUID STORAGE IN CONTAINERS AND PORTABLE TANKS
CONTAINER STORAGE— PORTABLE TANK STORAGE— MINIMUM DISTANCE TO
MAXIMUM PER PILE MAXIMUM PER PILE MINIMUM LOT LINE OF MINIMUM DISTANCE TO
CLASS OF DISTANCE PUBLIC STREET, PUBLIC
LIQUID Quantity a, b Height Quantity a, b Height BETWEEN PILES PROPERTY THAT CAN ALLEY OR PUBLIC WAY d
c, d
BE BUILT UPON
(gallons) (feet) (gallons) (feet) OR RACKS (feet) (feet) (feet)
IA 1,100 10 2,200 7 5 50 10
IB 2,200 12 4,400 14 5 50 10
IC 4,400 12 8,800 14 5 50 10
II 8,800 12 17,600 14 5 25 5
III 22,000 18 44,000 14 5 10 5
For SI: 1 foot = 304.8 mm, 1 gallon 3.785 L.
a. For mixed class storage, see Section 5704.4.2.
b. For storage in racks, the quantity limits per pile do not apply, but the rack arrangement shall be limited to not more than 50 feet in length and two rows or 9
feet in depth.
c. If protection by a public fire department or private fire brigade capable of providing cooling water streams is not available, the distance shall be doubled.
d. Where the total quantity stored does not exceed 50 percent of the maximum allowed per pile, the distances are allowed to be reduced 50 percent, but not less
than 3 feet.

2018 INTERNATIONAL FIRE CODE ® 441
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