Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 254

where contact is imperfect, or where a pile is close to, but not touching, another pile. Because pallets are not typically used, stacking is done by hand or by lift trucks using side clamps or prongs, which are pried between packages or bales without damaging the product. iii. Palletized storage - consists of unit loads placed on pallets that are then stacked on top of one another. A pallet load usually takes the form of a cube, with dimensions about one hundred twenty to one hundred fifty centimeters (120 cm to 150 cm) in height, and consists of a single or multiple package(s). The top surface of the pallet load must adequately support other pallet loads so that the commodity would not be crushed or the pile would not become unstable. Due to these considerations, the maximum height of palletized storage shall not exceed nine hundred ten centimeters (910 cm) iv. Rack storage – is a structural framework in which the commodity is placed usually as a pallet load. The design of rack storage systems maximizes vertical storage capacity. The ceiling height or the vertical reach of material handling equipment limits storage heights. Some rack storage arrangements are over thirty meters (30m) high. iv.a. Single row racks include racks up to one hundred eighty centimeters (180 cm) wide, separated from other storage by at least one meter (1m) aisles. iv.b. Double row racks consist of two single row racks placed back to back with a combined width of up to three hundred seventy centimeters (370 cm) and aisles at least one meter (1m) wide on each side. iv.c. Multiple row racks utilize a flow through or drive in configuration. They consist of racks greater than three hundred seventy centimeters (370 cm) wide, or single or double row racks separated by aisles less than one meter (1m) wide, with overall width exceeding three hundred seventy centimeters (370 cm). b. Combustibility of Materials i. Commodity Classification The following classification of commodities shall be used as a guide in determining sprinkler, venting, aisle spacing and other fire safety requirements for high piled storage: i.a. Class I commodities are essentially noncombustible products on wooden or non-expanded polyethylene solid 238