ISO/DIS 6139

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Under development

This Draft International Standard is in the enquiry phase with ISO members.

Will replace ISO 6139:1993

ISO/DIS 6139

CHF 67

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Abstract

The heterogeneity of distribution is characterized by the distribution variance and is determined by experimentally measuring the sampling variance. Because both the composition variance and distribution variance contribute to the measured sampling variance, it is necessary to separate these two components. Two methods of data analysis are permitted: Visman's theory of sampling which uses classical statistics and the variogram method which gives a better estimate because of taking into account serial correlation between adjacent increments.

General information

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
: 2

Number of pages
: 7
Technical Committee :
ISO/TC 79/SC 12

ICS :
73.060.40
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