International Standard
ISO 7884-1:1987
Glass — Viscosity and viscometric fixed points — Part 1: Principles for determining viscosity and viscometric fixed points
Reference number
ISO 7884-1:1987
ISO 7884-1:1987
Edición 1
1987-12
1987-12
© ISO 2024
International Standard
p
ISO 7884-1:1987
14825
No disponible en español
Publicado
(Edición 1, 1987)
Esta norma se revisó y confirmó por última vez en 2019.
Por lo tanto, esta versión es la actual.
Resumen
Rules a given characterizing glass as a liquid (or liquid-analogue deformable) material. Three ranges of viscosity can be distinguished: melting, working and annealing range. General requirements for measurement and calibration, for apparatus and for sampling are specified. The formulae for calculating the different values are described. In annex A tables for estimating the influence of errors in viscosity and temperature determination and in annex B examples of certified reference glasses are shown.
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