本标准涵盖塑料马桶碗、水箱、水箱盖或其组合的材料、工艺和表面处理的一般要求，以及性能和尺寸的物理要求和试验方法。本标准中列出的用于进行试验的材料和设备仅供参考，以确定是否符合本自愿性标准。类似设计、成分和规格的材料和设备也应允许进行这些试验。

This standard covers physical requirements and test methods for performance, and dimensions, in addition to general requirements of materials, workmanship and finish of plastic water closets bowls, tanks, tank covers or combinations of same. The materials and equipment which are listed to conduct the tests in this standard are provided for reference in determining compliance with this voluntary standard. Materials and equipment of similar design, composition, and specification shall also be permitted to conduct these tests.