Reference number
ISO 7991:1987
© ISO 2025
International Standard
ISO 7991:1987
Glass — Determination of coefficient of mean linear thermal expansion
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 7991:1987

Language
Format
CHF 65
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Abstract

The method deals with the measurement of the change of length of a glass fibre under specified conditions. The apparatus including the used dilatometers and the possibilities of corretion, the formulae for the final length and the expansion coefficient are specified. In the annex, devices for self-adjusting alignment of specimen and push-rod axis are described and illustrated.

General information

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