硅锰合金中化学成分分析能力实验室间结果比对  

Comparison of Laboratory Results for Chemical Composition Analysis of Silicon Manganese Alloy

作　　者：刘雪朋 LIU Xuepeng(Shandong Iron and Steel Group Rizhao Co.,Ltd.,Rizhao 276800,China)

机构地区：[1]山东省冶金科学研究院有限公司,山东济南250014

出　　处：《山东冶金》2023年第1期50-51,64,共3页Shandong Metallurgy

摘　　要：山东省冶金科学研究院有限公司能力验证中心开展了硅锰合金中化学成分分析能力验证活动。本次能力验证计划中Si含量结果统计分析采用经典(Classical)统计方法处理;Mn、P、S含量测定实验室结果(p<12)采用样品的标准值作为指定值X,指定值的标准不确定度ux由证书中给出,能力评定标准差σ由标准方法的精密度试验结果确定,计算各实验室结果的Z’比分数。结果显示,各检验检测实验室对硅锰合金中常规元素含量检测的能力和水平比较高,达到了本次能力验证的目的。Proficiency testing center of Shandong metallurgical sciences research institute Co.Ltd.has carried out the capability verification of chemical composition analysis in Si-Mn alloy.Classical statistical methods were used to analyze the results of Si content in this proficiency testing program.The contents of Mn,P and S(p<12)were determined by using the standard value of the designated value x,the standard uncertainty of the designated value uxwas given in the certificate,and the standard deviationσof the capability assessment was determined by the precision test result of the standard method,the Z’score of each laboratory result was calculated.The results show that the ability and level of the test laboratories to detect the content of conventional elements in Si-Mn alloy are relatively high,which achieves the purpose of the test.

关 键 词：能力验证 实验室间比对 硅锰合金 统计 

分 类 号：TG115.3[金属学及工艺—物理冶金]