International Standard
ISO 6139:1993
Aluminium ores — Experimental determination of the heterogeneity of distribution of a lot
Reference number
ISO 6139:1993
ISO 6139:1993
Edición 1
1993-08
1993-08
© ISO 2024
International Standard
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ISO 6139:1993
12368
No disponible en español
Publicado
(Edición 1, 1993)
Esta norma se revisó y confirmó por última vez en 2024.
Por lo tanto, esta versión es la actual.
Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1993-08Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 7
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Comité Técnico :ISO/TC 79/SC 12ICS :73.060.40
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