摘要
依据GB／T2007．3-1987和GB／T2007．4—2008标准要求，对10交货批散装红土镍矿进行了品质波动试验和取样精密度试验，得出了散装红土镍矿特性值镍的标准偏差估计值在0．10—0．23之间，据此将品质波动划分为“大”、“中”和“小”三种类型，≥0．20％为“大”、O．20〉〉0．15为“中”、≤0．15为“小”；取样精密度为βM=0．066％、BP=0．11％、βS=0．14％，总精密度为BSPM=0．15％。给出了在95％概率下，期望精密度下采取的最小份样数。
According to GB/T 2007.3-1987 and GB/T 2007.4-2008, the quality Variation test and sampling precision test were conducted using ten lot laterite nickel ore in bulk. The results of characteristic value nickel standard deviation estimator are between 0.10 and 0.23. It will be divided into ＂large＂, ＂medium＂ and ＂small＂ three types, which would be ≥ 0.20% for the ＂large＂, 0.20 〉 〉 0.15 for the ＂medium＂, ≤ 0.15 for the ＂small＂.The sampling precision areβ M=0.066%, β P=0.11% and βS=0.14% respectively.The total precision are 13 SPM=0.15%. The minimum increment is given at probability of 95% with expected precision.
作者
蒋晓光
赵军锋
宋承钢
刘明扬
褚宁
张彦甫
郭成伟
Jiang Xiaoguang, Zhao Junfeng, Song Chenggang, Liu Mingyang, Chu Ning, Zhang Yanfu, Guo Chengwei （1. Bayuquan Entry-Exit Inspection and Quarantine, Yingkou 115007 China; 2. China Nonferrous Metals Indusrt Standards, quality and metrology Institute; 3. China Certification ＆ Inspection Group Liaoning Co.,Ltd, Dalian 116001 China; 4.Liaoning Entry-Exit Inspection and Quarantine, Shenyang 116001 China;）
出处
《世界有色金属》
2016年第2期45-50,共6页
World Nonferrous Metals
基金
国家质检总局科研项目（20091K072）、检验检疫行业标准制订项目（20108253k）和工信部行业标准制订项目（2012-0727T-YS）.
关键词
散装
红土镍矿
品质波动
标准偏差
精密度
精密度
份样数
Bulk
Laterite nickel ore
Sampling
Quality variation
Standard deviation
Precision
Increment
