提供用于公路运输易腐货物的冷冻设备热性能的规范和测试程序。它基于机体的隔热能力和制冷装置的容量之间的热平衡。

Provides specifications and testing procedures for the thermal performance of refrigerated equipment intended for the transport of perishable goods by road. It is based on the heat balance between the insulating ability of the body and the capacity of the refrigeration unit.