使用有证标准煤样正确评价标准分析测定程序的准确度

The correct evaluation of accuracy of standard analytic determination process using certified reference coal samples

介绍了测定结果误差的统计模型,依据数理统计学原理及相应的标准,结合实例从评定方法简述、精密度评价、正确度评价等方面阐述在实验室内使用不同水平的多个有证标准煤样评价标准分析测定程序的准确度,指出应充分利用标准方法的精密度和标准煤样的认证值及不确定的信息。

The statistical model of determination result deviation was introduced in this paper, according to the principle of mathematical statistics and the corresponding standard, combining with practical samples and from aspects such as evaluation method introduction, precision evaluation and accuracy evaluation, the evaluation of accuracy of standard analytic determination process using several certified reference coal samples of different levels in the laboratory was demonstrated. It was also indicated that the precision of standard method, authentication value of certified reference coal samples and uncertain information should be utilized adequately.