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ISO 7884-4:1987

Current Revision

Glass - Viscosity and viscometric fixed points - Part 4 : Determination of viscosity by beam bending

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A method of determining the dynamic viscosity of glass on a rod-shaped test specimen, i.e. a beam, supported at its end is specified. The viscous deflection rate of the beam is measured under given load at the midpoint between the supports. In addition the viscosity-temperature relationship and the dependence of the viscosity on the thermal history of the sample can be determined. The theoretical basis relations and the apparatus including method of measurements are described.


SDO ISO: International Organization for Standardization
Document Number ISO 7884
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 48/SC 5
Publish Date Document Id Type View
Not Available ISO 7884-4:1987 Revision