International Standard
ISO 7884-7:1987
Glass — Viscosity and viscometric fixed points — Part 7: Determination of annealing point and strain point by beam bending
Reference number
ISO 7884-7:1987
Edición 1
International Standard
Vista previa
ISO 7884-7:1987
No disponible en español
Publicado (Edición 1, 1987)
Esta norma se revisó y confirmó por última vez en 2020. Por lo tanto, esta versión es la actual.

ISO 7884-7:1987

ISO 7884-7:1987
CHF 63
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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

Informaciones generales

  •  : Publicado
     : 1987-12
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 9
  • ISO/TC 48
  • RSS actualizaciones

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