ASTM D6796 - 02(2008) 实验室间研究用煤、焦煤和煤燃烧样品的制造规程
日期:2012-02-08 11:02
ds. Such an evaluation is necessary to provide guidance to the user as to the reliability of measurements that can be expected by its use. The statements are developed on the basis of user experience (ordinarily through interlaboratory studies) with the test method.
The availability of appropriate samples is a key requirement for interlaboratory studies.
The homogeneity of the sample produced for interlaboratory studies must be small enough so that the variance caused by the sample is small comp
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