Abstract
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.
General information
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Status: Under development
You can help develop this draft international standard by contacting your national member
Stage: DIS ballot initiated: 12 weeks [40.20] -
Edition: 3Number of pages: 42
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Technical Committee :ISO/TC 27/SC 4
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Life cycle
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Previously
PublishedISO 13909-7:2016
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Now
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