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FLAMMABLE AND COMBUSTIBLE LIQUIDS
MINIMUM DURATION SPRINKLER AND HOSE STREAM (hours) 2 2 1
MINIMUM HOSE STREAM DEMAND (gpm) 1,000 750 500
Number of sprinklers operating Hydraulically most remote— six sprinklers at each level Hydraulically most remote— six sprinklers at each level Hydraulically most remote— six sprinklers at each level
Minimum nozzle pressure 30 psi 30 psi 15 psi
IN-RACK SPRINKLER ARRANGEMENT AND DEMAND
On-end storage (on pallets) up to 9-foot-deep racks 1. Ordinary temperature sprinklers 8 feet apart horizontally 2. One line sprinklers above each tier of storage 3. Locate in longitudinal flue space, staggered ver- tical 4. Shields required where multiple-level 1. See 1 above 2. See 2 above 3. See 3 above 4. See 4 above 1. See 1 above 2. One line sprinklers every third level (maximum) 3. See 3 above 4. See 4 above
TABLE 5704.3.6.3(6) AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR RACK STORAGE OF LIQUIDS IN METAL CONTAINERS GREATER THAN 5-GALLON CAPACITY a On-side storage racks up to 9-foot-deep racks 1. Ordinary temperature sprinklers 8 feet apart hor- 2. One line sprinklers above each tier of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multiple-level 1. See 1 above 2. One line sprinklers every three tiers of storage 3.
Maximum spacing izontally 80 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 5,000 3,000 5,000 3,000
CLASS LIQUID (gpm/ ft 2 ) 0.60 (maximum 25-foot height) IB, IC and II 0.60 (maximum 25-foot height) 0.25 (maximum 40-foot height)
IA III For SI: a.
438 2018 INTERNATIONAL FIRE CODE ®
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