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ISO 13909-7:2016

Hard coal and coke - Mechanical sampling - Part 7: Methods for determining the precision of sampling, sample preparation and testing
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ISO 13909-7:2016

Hard coal and coke - Mechanical sampling - Part 7: Methods for determining the precision of sampling, sample preparation and testing

ISO 13909-7:2016

In ISO 13909-7:2016, formulae are developed which link the variables that contribute to overall sampling precision. Methods are described 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. Methods for checking the variance of sample preparation and testing are also described.

SDO ISO: International Organization for Standardization
Document Number ISO 13909
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 27/SC 4
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