ISO 641:1975

Current Revision
Laboratory glassware -- Interchangeable spherical ground joints

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ISO 641:1975

Laboratory glassware -- Interchangeable spherical ground joints

PUBLISH DATE 1975
ISO 641:1975

The requirements deal with the geometric characteristics 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 (steel 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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