ISO 641:1975 Preview

Laboratory glassware -- Interchangeable spherical ground joints

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.


General information

  • Status :  Published
    Publication date : 1975-09
  • Edition : 1
    Number of pages : 5
  • :
    ISO/TC 48
    Laboratory equipment
  • 71.040.20
    Laboratory ware and related apparatus

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