720366

ISO 7873:1993 [ Withdrawn ]

Control charts for arithmetic average with warning limits

standard by International Organization for Standardization , 12/01/1993

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Full Description

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.

 

Product Details

Published:
12/01/1993
Number of Pages:
13
File Size:
1 file , 950 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus