ISO/DIS 13909-7 : 50.60 (2016)被替代
HARD COAL AND COKE - MECHANICAL SAMPLING - PART 7: METHODS FOR DETERMINING THE PRECISION OF SAMPLING, SAMPLE PREPARATION AND TESTING
出版：International Organization for Standardization
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基本信息
标准编号： ISO/DIS 13909-7 : 50.60 (2016)
标准类别：Standard
出版单位：International Organization for Standardization
标准页数：0
标准简介
Defines methods for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision.
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