Glass — Determination of coefficient of mean linear thermal expansion
NORMA vydána dne 26.11.1987
Designation standards: ISO 7991:1987
Publication date standards: 26.11.1987
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Kategorie: Technické normy ISO
Description / 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.