散装红土镍矿取样关键技术研究  

Key technology research on sampling for nickel laterite ore in bulk

作　　者：蒋晓光[1] 赵军锋[2] 宋承钢 刘明扬[4] 褚宁[1] 张彦甫[1] 郭成伟[1] 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;）

机构地区：[1]鲅鱼圈出入境检验检疫局,辽宁营口115007 [2]中国有色金属工业标准计量质量研究所,北京100080 [3]中国检验认证集团辽宁有限公司,辽宁大连116001 [4]辽宁出入境检验检疫局,辽宁大连116001

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）.

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.

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 

分 类 号：O652.4[理学—分析化学;理学—化学]