This specification introduces formulas linking variables that can contribute to sampling precision. all precision
KS E ISO 13909-7:2005 history
2020KS E ISO 13909-7-2020 Hard coal and coke-Mechanical sampling-Part 7:Methods for determining the precision of sampling, sample preparation and testing
2005KS E ISO 13909-7:2005 Hard coal and coke-Mechanical sampling-Part 7:Methods for determining the precision of sampling, sample preparation and testing