This European Standard specifies the equipment and procedures for determiningThe coefficient of linearthermal expansion.The standard is applicable toThermal insulating products withinThe temperature range一196 0C to 850 0C, subject toThe possible temperature limitation of the test specimens. It shall not beused for products which duringThe test experience dimensional changes due toThe loss of hydrationwater or which undergo other phase changes.NOTE Because of its small dimensionsThe test specimen should be carefully selected to be representative of theproduct being tested