This standard covers cool-storage systems composed of chillers@ storage medium@ storage device or vessel@ heat sink equipment or heat sink systems@ and other auxiliary equipment required to provide a complete and working system. This standard includes a. a uniform method of testing@ b. identification of test equipment for performing such tests@ c. identification of data required and calculations to be used@ and d. definitions and terminology. This standard does not cover testing of the air-side distribution. PURPOSE This standard prescribes a uniform set of testing procedures for determining the cooling capacities and efficiencies of cool-storage systems.