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SRPS B.E8.308:1990

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

Jan 3, 1990
Jan 3, 1990

General information

90.20     Oct 15, 2025

90.60    Mar 4, 2026

ISS

B048

International Standard

81.040.01  

Serbian  

Standard preispitan i potvrđen u julu 2019. godine.

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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.

Life cycle

NOW

PUBLISHED
SRPS B.E8.308:1990
90.20 Standard under periodical review
Oct 15, 2025

Related project

Adopted from ISO 7884-8:1987

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