Errors in determining coal quality are compared. For the example of the ash content, it is shown that the error in forming the samples is almost an order of magnitude greater than the error in sample analysis. The metrological characteristics and conditions of correct utilization of results from coal analysis are considered in the light of GOST R ISO 5725 standards. The correct comparison of results obtained by different methods is described.
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机译：比较确定煤炭质量的错误。对于灰分的例子，表明形成样品的误差几乎比样品分析的误差大一个数量级。根据GOST R ISO 5725标准，考虑了煤炭分析的计量特性和正确利用条件。描述了通过不同方法获得的结果的正确比较。
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