Glass — Viscosity and viscometric fixed points — Part 3: Determination of viscosity by fibre elongation viscometer
NORMA vydaná dňa 26.11.1987
Označenie normy: ISO 7884-3:1987
Dátum vydania normy: 26.11.1987
Počet strán: 8
Približná hmotnosť: 24 g (0.05 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: 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.