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ISO 7884-7:1987
Glass — Viscosity and viscometric fixed points — Part 7: Determination of annealing point and strain point by beam bending
Automatically translated name:
Glass -- Viscosity and viscometric fixed points -- Part 7: Determination of annealing point and strain point by beam bending
STANDARD published on 26.11.1987
The information about the standard:
Designation standards: ISO 7884-7:1987
Publication date standards: 26.11.1987
SKU: NS-435319
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 7884-7:1987 :
Description / Abstract: 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
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