ISO 16871:2003规定了一种方法，用于将单独或组装的塑料管道和配件，或作为塑料管道和配件的一部分暴露在自然风化中，以评估变化。 在安装和使用之前，在不进一步暴露于直接风化的情况下，暴露被认为适合于评估需要在场地储存的组件，并被量化，以促进暴露剂量的合理化和数据的可比性。 对于适合热带或赤道条件的暴露，请注意ISO 877。

ISO 16871:2003 specifies a method for exposing plastics pipes and fittings, individually or assembled, or as pieces therefrom, to natural weathering in order to assess changes. The exposure is considered appropriate for evaluating components subject to yard storage prior to installation and use without further exposure to direct weathering, and is quantified to promote rationalization of exposure doses and comparability of data. For exposures appropriate to tropical or equatorial conditions, attention is drawn to ISO 877.