本标准规定了球阀或冲水计阀尾件疏水阀底漆和与其连接的疏水阀底漆接收器/适配器的材料、物理特性、试验、标记和标识要求。

This Standard specifies requirements for materials, physical characteristics, tests, and markings and identification for ballcock or flushometer valve tailpiece trap primers and trap primer receptors/adapters connected thereto.