ISO 641:1975
Laboratory glassware; Interchangeable spherical ground joints

Standard No.

ISO 641:1975

Release Date

1975

Published By

International Organization for Standardization (ISO)

Latest

ISO 641:1975

Scope

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.

ISO 641:1975 history

• 1975 ISO 641:1975 Laboratory glassware; Interchangeable spherical ground joints