ISO 7884-2:1987

Current Revision
Glass - Viscosity and viscometric fixed points - Part 2 : Determination of viscosity by rotation viscometers

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ISO 7884-2:1987

Glass - Viscosity and viscometric fixed points - Part 2 : Determination of viscosity by rotation viscometers

PUBLISH DATE 1987
ISO 7884-2:1987

This method allows continuous measurements of viscosity and measurements under various shearing stresses.

The viscosity is determined by the flow field coefficient, the torque, and the rotational frequency.

Two types of rotation viscometers are described:

  • Viscometer of the Couette type with adjustable revolving crucible
  • Viscometer of Searle type with the crucible at rest and the plunger revolving

The procedure is specified and typical examples of flow field with formulas for calculating (Annex A) and a typical rotation viscometer (Annex B) are described.

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