结晶点的测定 通用方法
Determination of crystallizing point -- General method
摘要: The method is applicable in the range from about -50 °C to about +250 °C. the determination can be carried out directly on the sample as received, or on the dried sample, or on both. In which of these conditions the sample is to be tested will be stated in the specific test method for each material. The principle is based on cooling the liquid or liquefied sample and observation of the temperature during crystallization under defined conditions. Samples with a higher water content, e.g. pastes, shall be dried before in every case. - Replaces ISO Recommendation R 1392-1970.
标准编号: ISO 1392-1977
发布单位: IX-ISO
发布日期: 1977年2月1日
状态: 现行
强制性标准:
实施日期: 1977年2月1日
开本页数: 4
中国标准分类号:
G G04
化工综合
国际标准分类号: 71 71.040.50