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

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

11-26-1987

Publisher

International Organization for Standardization

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

DevelopmentNote	Also numbered as BS 7034-7(1988) (09/2005)
DocumentType	Standard
Pages	9
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
DIN 52312-7:1988-12 (Draft)	Identical
DIN 52312-7:1988-12 (Draft)	Corresponds
DIN ISO 7884-7:1998-02	Identical

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UNI EN 14706 : 2012	THERMAL INSULATION PRODUCTS FOR BUILDING EQUIPMENT AND INDUSTRIAL INSTALLATIONS - DETERMINATION OF MAXIMUM SERVICE TEMPERATURE
ISO 7348:1992	Glass containers Manufacture Vocabulary
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