烟草科技Issue(3)：53-60,8.DOI:10.16135/j.issn1002-0861.20150310
用质控图和稳健统计-迭代法评估烟草中钾的实验室测量不确定度
Uncertainty in Laboratory Measurement of Potassium in Tobacco by Quality Control Chart and Robust Statistics-Iterative Method
高川川 1史训瑶 1朱文静 1楼小华 1张晓瑜1
作者信息
- 1. 贵州省烟草质量监督检测站，贵阳市金阳新区云潭北路烟草科技大楼 550025
- 折叠
摘要
Abstract
In order to compare the differences between bottom-up and top-down methods for evaluating uncertainty in measurement, the laboratory data concerning quality control were used for assessing uncertainties in measurement of potassium in tobacco with bottom-up method and the quality control chart and robust statistics-iterative method in top-down method separately. The results showed that: 1) The expanding uncertainty was 0.034% for the quality control chart and robust statistics-iterative method, and that for bottom-up method was 0.048%, the two methods presented good consistency. 2) Top-down method could reflect long term measurement level of a laboratory, it was suitable for interior quality control within a laboratory where a large number of quality control data had been accumulated.关键词
烟草/钾/质控图/稳健统计-迭代法/测量不确定度Key words
Tobacco/Potassium/Quality control chart/Robust statistics-iterative method/Uncertainty in measurement分类
轻工纺织引用本文复制引用
高川川,史训瑶,朱文静,楼小华,张晓瑜..用质控图和稳健统计-迭代法评估烟草中钾的实验室测量不确定度[J].烟草科技,2015,(3):53-60,8.
