标准摘要
[中文适用范围]： 这些要求涉及几何特性以确保互换性。 接头磨削区域的尺寸和连接到接头的管子的外径在表格中给出并在图中示出。 此外还规定了表面光洁度。 提出了用于测试球杯的量规系统（钢球）。 在附件中描述了包括该装置的泄漏测试方法。 [外文原描述]： The requirements deal with the geometric charateristics to ensure interchangeability. The dimensions of the joint-ground zone and the outer diameter of the tube connected to the joint are given in a table and illustrated in a drawing. In addition the surface finish is specified. A system of gauges (stell balls) for testing the ball cup is tabled. In the annex a method of testing the leakage including the apparatus is described.
英文名称Laboratory glassware — Interchangeable spherical ground joints