标准摘要
[中文适用范围]： 本文件规定了一种使用反射聚光器将塑料暴露于集中太阳辐射以加速老化过程的方法。目的是评估在指定暴露阶段后产生的性能变化。在这些暴露中使用的反射聚光器有时被称为“菲涅尔反射器”，因为用于集中太阳辐射的镜子阵列在横截面上类似于菲涅尔透镜的横截面。关于ISO 877系列范围的总体指导见ISO 877-1。注：关于太阳能集中暴露的附加信息（包括指定这些暴露的部分标准列表）见参考文献。 [外文原描述]： This document specifies a method for exposing plastics to concentrated solar radiation using reflecting concentrators to accelerate the weathering processes. The purpose is to assess property changes produced after specified stages of such exposures. The reflecting concentrators used in these exposures are sometimes referred to as “Fresnel reflectors” because, in cross-section, the array of mirrors used to concentrate the solar radiation resembles the cross-section of a Fresnel lens. General guidance concerning the scope of the ISO 877 series is given in ISO 877-1. NOTE Additional information about solar concentrating exposures, including a partial list of standards in which they are specified, is given in the Bibliography.
英文名称Plastics — Methods of exposure to solar radiation — Part 3: Intensified weathering using concentrated solar radiation