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ISO 7884-8:1987

Glass — Viscosity and viscometric fixed points — Part 8: Determination of (dilatometric) transformation temperature

Nov 26, 1987

General information

90.20     Oct 15, 2025

ISO

ISO/TC 48/SC 7

International Standard

81.040.01  

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Scope

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.

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NOW

PUBLISHED
ISO 7884-8:1987
90.20 Standard under periodical review
Oct 15, 2025

National adoptions

Glass — Viscosity and viscometric fixed points — Part 8: Determination of (dilatometric) transformation temperature

90.20   Standard under periodical review

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