This standard classification is intended to provide standardized size specifications for bulk box and pallet units for plastic Resin to accommodate bulk densities of 27 to 39 lbs/cu ft (0.432 to 0.625 g/cu cm). By standardizing Encasement dimensions, this standard aims to enhance the versatility of bulk boxes and pallets, reduce manufacturing costs, reduce environmental impact, and optimize life-cycle Encasement costs. The standard supports Resin producers, bulk box and pallet manufacturers in providing cost-effective Encasement within the target density range, while directing relevant personnel to adjust Encasement dimensions reasonably. The standard does not apply to Resin with a stacking density below or above the specified range, or to bulk boxes involving hazardous materials. It also does not address international shipping regulations or specific storage requirements for Encasement units.