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Glass — Viscosity and viscometric fixed points — Part 1: Principles for determining viscosity and viscometric fixed points
Automatically translated name:
Glass -- Viscosity and viscometric fixed points -- Part 1: Principles for determining viscosity and viscometric fixed points
STANDARD published on 26.11.1987
Designation standards: ISO 7884-1:1987
Publication date standards: 26.11.1987
SKU: NS-435313
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: International technical standard
Category: Technical standards ISO
Description / Abstract: 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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