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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
26. 11. 1987.

Опште информације

90.60     5. 3. 2026.

ISO

ISO/TC 48/SC 7

Međunarodni standard

81.040.01  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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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TRENUTNO

OBJAVLJEN
ISO 7884-7:1987
90.60 Završetak postupka preispitivanja standarda
5. 3. 2026.