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SSH ISO 7884-7:2002

Glass — Viscosity and viscometric fixed points — Part 7: Determination of annealing point and strain point by beam bending

Jan 1, 2002

General information

60.60     Jan 1, 2002

DPS

DPS/KT 129

International Standard

81.040.01  

English  

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Scope

The specified method provides values being useful for specifying the cooling programme in the production of glassware. The annealing point is determined by measuring the rate of midpoint viscous bending of a simple loaded glass beam. The strain point is subsequently determined by an extrapolation method. Annex A provides the formulae for cross-sectional moment of inertia at various cross-section geometries, and annex B shows an example of beam bending apparatus

Life cycle

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PUBLISHED
SSH ISO 7884-7:2002
60.60 Standard published
Jan 1, 2002

Related project

Adopted from ISO 7884-7:1987