ISO 1452-3:2009规定了由未增塑聚氯乙烯（PVC？U）制成的管件的特性，该管件适用于供水管道系统、埋地和地上排水管道系统以及承压污水管道系统。它还规定了所述试验方法的试验参数。 结合ISO 1452-1、ISO 1452-2和ISO 1452-5，它适用于PVC？U配件，以及与PVC？U组件、其他塑料和非塑料材料的接头，用于以下用途: -埋在地下的水管和供水设施； -建筑物内外的地面输水； -有压力的地下和地上排水和污水系统。 本标准适用于压力小于等于25°C（冷水）的管道系统中的配件、供人类使用的配件、一般用途的配件以及压力下的废水配件。 它也适用于45°C及以下的水和废水输送部件。

ISO 1452-3:2009 specifies the characteristics of fittings made from unplasticized poly(vinyl chloride) (PVC？U) for piping systems intended for water supply and for buried and above ground drainage and sewerage under pressure. It also specifies the test parameters for the test methods referred to. In conjunction with ISO 1452-1, ISO 1452-2 and ISO 1452-5, it is applicable to PVC？U fittings and to joints with components of PVC？U, other plastics and non-plastics materials intended to be used for the following: - water mains and services buried in the ground; - conveyance of water above ground for both outside and inside buildings; - buried and above ground drainage and sewerage under pressure. It is applicable to fittings in piping systems intended for the supply of water under pressure up to and including 25 °C (cold water), intended for human consumption and for general purposes as well as for waste water under pressure. It is also applicable to components for the conveyance of water and waste water up to and including 45 °C.