本标准涵盖了材料和工艺性能要求的物理要求和试验方法，以及塑料浴缸或淋浴装置的表面处理，包括或不包括与浴缸或淋浴器整体制造的墙壁；或者作为多件式单元，作为浴缸或淋浴单元的一部分进行分配。此类产品应符合本标准中概述的要求。虽然本标准涵盖了塑料浴缸或淋浴装置的性能要求，并从适用于所有此类装置的试验方法方面描述了这些性能要求，但应允许使用多种不同的材料和制造方法来满足这些要求。 每种材料和方法都有不同的性能，这将影响其最终性能和预期用途的适用性。因此，本标准的部分内容被分解为单独的要求，旨在识别这些单独的特征。本标准中列出的用于执行测试程序的材料和设备仅供参考。类似设计、成分和规格的材料和设备只能在产生同等结果时用于执行这些试验程序。

This standard covers physical requirements and test methods for performance requirements of materials and workmanship, and finish of plastic bathtub or shower units with or without walls manufactured integral with the bathtub or shower; or as a multi-piece unit distributed as part of the bathtub or shower unit. Such products shall meet the requirements as outlined in this standard. While this standard covers the performance requirements of plastic bathtub or shower units and describes these performance requirements in terms of methods of test applicable to all such units, a number of different materials and methods of manufacture shall be permitted to be used to meet these requirements. Each of these materials and methods have different properties which will affect its end performance and suitability for the intended use. For this reason, portions of the standard are broken into separate requirements designed to identify these individual characteristics. The materials and equipment which are listed as having been used to conduct the testing procedures in this standard are provided solely for informational reference. Materials and equipment of similar design, composition and specification shall only be used to conduct these testing procedures when they produce equivalent results.