International Standard
ISO 6139:1993
Aluminium ores — Experimental determination of the heterogeneity of distribution of a lot
Reference number
ISO 6139:1993
Edition 1
1993-08
International Standard
Read sample
ISO 6139:1993
12368
Published (Edition 1, 1993)
This standard was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 6139:1993

ISO 6139:1993
12368
Language
Format
CHF 63
Convert Swiss francs (CHF) to your currency

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

  •  : Published
     : 1993-08
    : International Standard confirmed [90.93]
  •  : 1
     : 7
  • ISO/TC 79/SC 12
    73.060.40 
  • RSS updates

Life cycle

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)