• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Metrology Trends and Applications in Calibration and Testing Laboratories >INTERLABORATORY COMPARISON TESTING OF METALLURGICAL PRODUCTS FOR THE CONTENTS OF PRECIOUS METALS
【24h】

INTERLABORATORY COMPARISON TESTING OF METALLURGICAL PRODUCTS FOR THE CONTENTS OF PRECIOUS METALS

机译：冶金产品冶金产品的互上比较试验

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A need in the analysis of non-standardized materials is widely encountered in practice of analytical laboratories. Such has been indeed the case in "Norilsky Nickel" plant, which is a major producer of nickel, copper and platinum metals in Russia. One of the tasks of the plant analytical service is to test the starting raw, semi processed and final products on the contents of precious metals for the estimation of an extraction efficiency and drawing up the material balance on these metals over the plant. The both problem are obviously non solvable without a verification the accuracy of the analysis results. The unavailability of certified reference samples appropriate to the direct accuracy verification calls for an involvement of external participants to carry out the verification procedure by the way of interlaboratory comparison testing (ICT). The ICT program was developed with participation, along with the analytical service of "Norilsky Nickel", the other eight analytical laboratories accredited for the works with precious metals. The role of a program coordinator was taken over by the analytical service of "Norilsky Nickel". It was also responsible for a preparation the samples to be analyzed and carrying out the homogeneity test. Three materials referring to semi products in the technological line of precious metals production were chosen as the ICT objects: nickel slime, copper slime, and secondary and slag anodes. The concentrations of precious metals (Pd, Pt, Rh, Ru, Ir, Au and Ag) were defined as the parameters to be determined in the objects. In deciding on an analytical method, no limitations were inserted for the participants. On completion the ICT program, the analysis results had been obtained in 42 runs for nickel slime, 42 runs for copper slime and 14 runs for secondary and slag anodes (826 data in total). For each run, the mean value of the parameter of interest, C_(mean), and its standard deviation, S, were calculated. The calculated values of C_(mean) were agreed as the reference values to the parameter of interest in the runs under consideration. In each run, the results presented by "Norilsky Nickel" are in agreement with the agreed reference values within a range of the calculated S values. The ICT program provides the data for a quality assessment over the results of the participants. It was performed by Z-criterion in line with ISO Guide 43 recommendation. The quality of the ICT results in total can be regarded as satisfactory (Z<2), although Z score calculation for the each ICT object in its own right reveals the laboratories whose results in some parts of ICT program should be considered as doubtful (23) are absent.
机译：在分析实验室的实践中，广泛遇到了在分析非标准化材料中的需求。这一点确实是“诺里尔斯基镍”植物的案例，这是俄罗斯镍，铜和铂金属的主要生产商。植物分析服务的任务之一是测试原始的原始，半处理和最终产品，以估计提取效率，并在植物上吸取这些金属上的材料平衡。两个问题显然是不可解的，而不验证分析结果的准确性。认证参考样品的不可用适用于直接准确性验证要求通过交互式比较测试（ICT）的方式执行外部参与者执行验证程序。 ICT计划是通过参与开发的，以及“Norilsky Nockel”的分析服务，另外八个分析实验室，用于贵金属的作品。计划协调员的作用被“Norilsky镍”的分析服务接管。还负责制备待分析的样品并进行均匀性试验。选择了三种贵金属生产技术系列半产品的材料作为ICT对象：镍粘液，铜粘液和二级和渣阳极。贵金属（Pd，Pt，Rh，Ru，IR，Au和Ag）的浓度被定义为在物体中确定的参数。在决定分析方法时，没有针对参与者插入限制。在完成ICT程序时，已在42个用于镍粘液运行中获得的分析结果，42用于铜制粘液的运行，辅助和渣阳极的14个运行（总共826个数据）。对于每个运行，计算利息参数C_（均值）和标准偏差，S的平均值。 C_（均值）的计算值同意作为参考值的参数对所考虑的运行参数。在每次运行中，由“Norilsky Nickel”所呈现的结果与计算的S值范围内的商定的参考值一致。 ICT计划为参与者的结果提供了质量评估的数据。它是通过z标准进行的，与ISO指南43推荐一致。 ICT的质量总计可以被视为令人满意的（Z <2），尽管Z在其自己的权利中对每个ICT对象的分数计算揭示了ICT计划某些部分结果的实验​​室应被视为怀疑（2 3）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号