ISO 7884-3:1987 Preview
Glass -- Viscosity and viscometric fixed points -- Part 3: Determination of viscosity by fibre elongation viscometer
This standard was last reviewed and confirmed in 2010. Therefore this version remains current.
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.
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