| 钢铁及其合金中铬含量测定结果的不确定度评定 |
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| 引用本文： | 乔文生.钢铁及其合金中铬含量测定结果的不确定度评定[J].化学分析计量,2004,13(2):4-6. |
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| 作者姓名： | 乔文生 |
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| 作者单位： | 天津出入境检验检疫局,天津,300201 |
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| 摘 要： | 对用GB／T223、11—1991《过硫酸铵氧化容量法测定铬量》的方法测定钢铁及合金中铬含量测量结果的不确定度进行了评定。对样品测量过程中的不确定度分量进行了分析和量化，求得铬含量测定结果的标准不确定度和扩展不确定度分别为0．06％和0．12％。
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| 关 键 词： | 钢铁 合金 铬 测定 不确定度 评定 |
| 修稿时间： | 2003年9月28日 |
EVALUATION OF THE UNCERTAINTY OF THE MEASUREMENT RESULT FOR DETERMINATION OF CHROMIUM CONTENT IN STEEL AND ITS ALLOYS |
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| Qiao Wensheng.EVALUATION OF THE UNCERTAINTY OF THE MEASUREMENT RESULT FOR DETERMINATION OF CHROMIUM CONTENT IN STEEL AND ITS ALLOYS[J].Chemical Analysis And Meterage,2004,13(2):4-6. |
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| Authors: | Qiao Wensheng |
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| Abstract: | The uncertainty of measurement was evaluated for the determination of chromium in steel and its alloys by the method of GB/T 223.11-1991, the Ammonium Persulfate Oxidation Volumetric Method for the Determination of Chromium Content. The components of the uncertainty of the measurement were analysed and calculated, the standard uncertainty and the expanded uncertainty of measurement result of chromium are 0.06% and 0.12% respectively. |
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| Keywords: | steel alloy chromium determination uncertainty evaluation |
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