ISO 6139-1993 铝土矿石 分配器的均匀分配的实验室测定

标准号：ISO 6139-1993
中文标准名称：铝土矿石 分配器的均匀分配的实验室测定
英文标准名称：Aluminium ores; experimental determination of the heterogeneity of distribution of a lot
标准类型：D41
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：D41
国际标准分类号：73.060.40
适用范围：The heterogeneity of distribution is characterized by the distribution variance and is determined by experimentally measuring the sampling variance. Because both the composition variance and distribution variance contribute to the measured sampling variance, it is necessary to separate these two components. Two methods of data analysis are permitted: Visman's theory of sampling which uses classical statistics and the variogram method which gives a better estimate because of taking into account serial correlation between adjacent increments.