Abstract

Specifies procedures for the statistical control of processes by using control charts based on calculating the arithmetic average of a sample and using warning limits and action limits. It is assumed that for large lots and for the mass output of piece and batch production, such a measure of quality is a random variable following a normal distribution. However, when averages of four or more items are plotted, this assumption of a normal distribution is not necessary for control purposes.


General information

  • Status :  Withdrawn
    Publication date : 1993-12
  • Edition : 1
  • :
    ISO/TC 69/SC 4
    Applications of statistical methods in product and process management
  • 03.120.30
    Application of statistical methods

Life cycle

A standard is reviewed every 5 years



Revisions / Corrigenda

  • Now withdrawn
    ISO 7873:1993

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