Reference number
ISO 7884-8:1987
© ISO 2025
International Standard
ISO 7884-8:1987
Glass — Viscosity and viscometric fixed points — Part 8: Determination of (dilatometric) transformation temperature
Edition 1
1987-12
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Published (Edition 1, 1987)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 7884-8:1987

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CHF 43
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Abstract

The temperature characterizes a certain glass transition range from the elastic brittle (low temperature) state to the viscous (high temperature) state of glass. It is used for specifying cooling programmes. The transformation temperature is determined by measuring the change in length, related to the length at intial temperature, of a rod made from the glass under test with temperature. The relative change in length is plotted against the temperature (dilatometer curve). From this dilatometer curve the transformation temperature is determined by a graphic procedure as shown in a diagramm.

General information

  • Status
     : Published
    Publication date
     : 1987-12
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 48/SC 7
    ICS :
    81.040.01 
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