Sampling systems and on-line analyzers

被引：0
|
作者：
Laurila, Mel [1 ]
机构：
[1] Weir Int Mining Consultants, Des Plaines, United States
来源：
Coal Age | 1995年 / 100卷 / 07期
关键词：
Graphic methods - Numerical methods - Programmable logic controllers - Sampling - Standards - Statistical methods;
D O I：
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学科分类号：
摘要：
When a performance test conducted on an on-line coal analyzer is compared to the results of a mechanical sampling system on the same conveyor belt, knowing whether the two ever agree, or which of the two is right, is not easy. In view of this, a task group within the American Society for Testing and Materials (ASTM D05.23) attempted to publish a standard guide to the evaluation of measurements made by on-line coal analyzers. This guide contains a number of graphical and numerical methods for comparing analyzer values and reference values. The document, now on its 13th draft will be presented to the ASTM for verification this year.
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页码：48 / 50
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