Method for determination of the coefficient of mean linear thermal expansion of glass

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-1989

Publisher

British Standards Institution

National foreword
Committees responsible
Method
1 Scope and field of application
2 References
3 Definition
4 Apparatus
5 Test specimen
6 Procedure
7 Expression of results
8 Performance test
9 Test report
Annex
   Devices for self-adjusting alignment of specimen and
   push-rod axis
Table
   Coefficient of mean linear thermal expansion alpha Q
   for vitreous silica
Figures
1 Example of a specimen-holding and push-rod assembly
   of a dilatometer working almost vertically
2 Example of a specimen-holding and push-rod assembly
   of a dilatometer working horizontally

Applies to glasses of normal bulk-production compositions but not to fused silica, glass ceramics or other glasses of low linear thermal expansion coefficients.

This International Standard specifies a method for determining the coefficient of mean linear thermal expansion of glass in the elastic solid-like state, well below the transformation temperature (see ISO 7884-8).

This International Standard applies to all glasses of normal bulk-production compositions. It does not apply to fused silica, glass ceramics or other glasses of similarly low linear thermal expansion coefficients.

Committee	LBI/1/2
DevelopmentNote	Supersedes 86/51632 DC. Also numbered as ISO 7991. (09/2005)
DocumentType	Standard
Pages	14
PublisherName	British Standards Institution
Status	Current

BS 7034-8:1988	Viscosity and viscometric fixed points of glass Method for the determination of (dilatometric) transformation temperature
BS EN 1595:1997	Pressure equipment made from borosilicate glass 3.3. General rules for design, manufacture and testing

BS 4937-4:1973	International thermocouple reference tables Nickel -chromium/nickel - aluminium thermocouples. Type K
BS 4937-6:1974	International thermocouple reference tables Nickel-chromium/copper-nickel thermocouples. Type E
BS 4937-3:1973	International thermocouple reference tables Iron/copper - nickel thermocouples. Type J
BS 7034-8:1988	Viscosity and viscometric fixed points of glass Method for the determination of (dilatometric) transformation temperature

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BS 7030:1988

Method for determination of the coefficient of mean linear thermal expansion of glass

Table of Contents

Abstract

Scope

General Product Information

Standards Referenced By This Book

Standards Referencing This Book

Category

Subcategory