Page 470 - 2018_IFC

FLAMMABLE AND COMBUSTIBLE LIQUIDS

MINIMUM DURATION SPRINKLER AND HOSE STREAM (hours) 2 2 2 2 2

MINIMUM HOSE STREAM DEMAND (gpm) 750 500 500 750 500

Number of sprinklers operating 1. Eight sprinklers if only one level 2. Six sprinklers each on two levels if only two levels 3. Six sprinklers each on top three levels, if three or more levels 4. Hydraulically most remote See 1 through 4 above Not Applicable Hydraulically most remote—six sprinklers at each level, up to a maximum of three levels Same as for Class II liquids

30 psi (standard orifice) 14 psi (large orifice) 30 psi (0.5- inch orifice) 14 psi (0.53-inch orifice) Not Applicable 30 psi 30 psi
IN-RACK SPRINKLER ARRANGEMENT AND DEMAND

Racks more than 9 feet to 12 feet deep 1. Ordinary temperature, quick- response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. One line sprinklers above each 3. Locate in transverse flue spaces, staggered vertical and within 20 4. Shields required where multiple- 1. Ordinary temperature, quick- response sprinklers, maximum 8 feet 3 inches horizontal spacing Not Applicable 1. Ordinary temperature sprinklers 8 feet apart horizontally

TABLE 5704.3.6.3(5) AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR RACK STORAGE OF LIQUIDS IN METAL CONTAINERS OF 5-GALLON CAPACITY OR LESS WITH OR WITHOUT CARTONS ON CONVENTIONAL WOOD PALLETS a level of storage inches of aisle level 2. See 2 above 3. See 3 above 4. See 4 above inches of aisle level 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 square foot = 0.0929 m 2 , 1 pound per square inch = 6.895 kPa, 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 ga

Racks up to 9 feet deep 1. Ordinary temperature, quick- response sprinklers, maxi- mum 8 feet 3 inches horizontal spacing 2. One line sprinklers above each level of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multiple-level 1. Ordinary temperature, quick- response sprinklers, maxi- mum 8 feet 3 inches horizontal spacing 2. See 2 above 3. See 3 above 4. See 4 above Not Applicable None for maxi

Maximum spacing 80 ft 2 /head 100 ft 2 / head 100 ft 2 / head 100 ft 2 / head 120 ft 2 / head

CEILING SPRINKLER DESIGN AND DEMAND Area (square feet) Density Ordinary High- temperature temperature sprinklers sprinklers 5,000 3,000 Not 2,000 b Applicable Not 2,000 d Applicable 5,000 3,000 5,000 3,000

CLASS LIQUID (gpm/ft 2 ) (maximum 0.40 25-foot height) Option 1 (maximum 0.55 25-foot height) Option 2 (maximum 14- foot storage 0.55 c (maximum three tiers) 0.30 (maximum 25- foot height) 0.25 (40-foot height) L/min/m 2 . quick-response sprinklers.

I I I and II height) II III For SI: a. b. c. d.

2018 INTERNATIONAL FIRE CODE ® 437
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