ISO 13909-7:2016 (R2022)
Superseded , Reaffirmed , Under review Standard
Historical

ISO 13909-7:2016 (R2022)

Hard coal and coke — Mechanical sampling
Part 7: Methods for determining the precision of sampling, sample preparation and testing
Most recent standard
Draft standard

Summary

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.

Notes

90.92 : Norme internationale à réviser

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 06/23/2016
Confirmation Date 03/02/2022
Edition 2
Page Count 43
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ISBN ---
Weight (in grams) ---
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