18.5 In-Rack Sprinkler System Requirements for Protection of Rubber Tires

In-rack sprinklers, where provided, shall be installed in accordance with Chapter 17, except as modified by 18.5.2 through 18.5.4.

The maximum horizontal spacing of sprinklers in racks shall be 8 ft (2.4 m).

Water demand for sprinklers installed in racks shall be based on simultaneous operation of the most hydraulically remote 12 sprinklers where only one level is installed in racks.

Sprinklers in racks shall discharge at not less than 30 psi (2.1 bar).