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现行 ISO 641:1975
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Laboratory glassware — Interchangeable spherical ground joints 实验室玻璃器皿——可互换球形接地接头
发布日期: 1975-09-01
这些要求涉及几何特性,以确保互换性。表中给出了接头接地区的尺寸和连接到接头的管子的外径,并在图纸中进行了说明。此外,还规定了表面光洁度。表中列出了用于测试球杯的量规(钢球)系统。附录中描述了包括设备在内的泄漏测试方法。
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.
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归口单位: ISO/TC 48/SC 7
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