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ISO 7884-2:1987

Glass — Viscosity and viscometric fixed points — Part 2: Determination of viscosity by rotation viscometers ISO 7884-2:1987

Publication date:   Nov 26, 1987

General information

90.93 Standard confirmed   Dec 11, 2020

ISO

ISO/TC 48 Laboratory equipment

International Standard

81.040.01   Glass in general

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Published

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Scope

This method allows continuous measurements 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 and viscometer of Searle type with the crucibel at rest and the plunger revolving. The procedure is specified and typical examples of flow field with formules for calculating (annex A) and a typical rotation viscometer (annex B) are described.

Life cycle

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PUBLISHED
ISO 7884-2:1987
90.93 Standard confirmed
Dec 11, 2020