ISO 4897-1985 泡沫塑料 低温下的硬质材料线性热膨胀系数的测定

标准号：ISO 4897-1985
中文标准名称：泡沫塑料 低温下的硬质材料线性热膨胀系数的测定
英文标准名称：Cellular plastics; Determination of the coefficient of linear thermal expansion of rigid materials at sub-ambient temperatures
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G31
国际标准分类号：83.100
适用范围：Specifies two methods for determing the coefficient of linear thermal expansion. Method A is the preferred method, it gives a value on a large sample at a chosen temperature. Method B should be employed to obtain an average coefficient for the temperature interval between the cryogenic temperature and the ambient temperature. In an annex the test apparatures for both methods are described in detail.