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ISO 7884-3:1987 Glass - Viscosity and viscometric fixed points - Part 3 : Determination of viscosity by fibre elongation viscometer
standard by International Organization for Standardization, 12/01/1987
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Full Description
A method of determining the dynamic viscosity of glass by measuring the elongation a glass fibre under a defined uniaxial stress. In addition the viscosity-temperature relationship and the dependence of the viscosity on the thermal history can be checked. The theoretical basis relation and the apparatus including the method of measuring are specified.