International Standard
ISO 7991:1987
Glass — Determination of coefficient of mean linear thermal expansion
Reference number
ISO 7991:1987
ISO 7991:1987
Edition 1
1987-12
1987-12
© ISO 2024
International Standard
p
ISO 7991:1987
14988
Published
(Edition 1, 1987)
This standard was last reviewed and confirmed in 2020.
Therefore this version remains current.
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.
Life cycle
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