ISO 15875-2:2003规定了由交联聚乙烯（PE-X）制成的管道系统的特性，该管道系统用于建筑物内的热水和冷水装置，用于输送可能或可能不用于人类消费（家用系统）或供暖系统的水，在适用于应用类别的工作压力和温度下。 它涵盖了一系列工作条件（应用等级）、设计压力和管道尺寸等级。如果设计温度、最高设计温度和故障温度的值超过ISO 15875中给出的值，则不适用- 1. 它还规定了本标准中提及的试验方法的试验参数。 与ISO 15875的其他部分一起，它适用于PE-X管道及其接头，包括与其他PE-X部件的接头，以及由其他塑料和非塑料材料制成的用于热水和冷水安装的部件。 它适用于有或没有（a）阻挡层的管道。

ISO 15875-2:2003 specifies the characteristics of pipes made from crosslinked polyethylene (PE-X) for piping systems intended to be used for hot and cold water installations, within buildings, for the conveyance of water which may or may not be intended for human consumption (domestic systems) or for heating systems, under operating pressures and temperatures appropriate to the class of application. It covers a range of service conditions (application classes), design pressures and pipe dimension classes. It does not apply if the values of the design temperature, maximum design temperature and malfunction temperature are in excess of those given in ISO 15875-1. It also specifies the test parameters for the test methods referred to in the standard. In conjunction with the other parts of ISO 15875, it is applicable to PE-X pipes and their joints, including joints with other PE-X components and components made of other plastics and non-plastics materials intended to be used for hot and cold water installations. It is applicable to pipes with or without (a) barrier layer(s).