ISO 7873:1993 PDF
Control charts for arithmetic average with warning limits
Title (English):
ISO 7873:1993
Control charts for arithmetic average with warning limits
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 13
- Publication date:
- December 23, 1993
- Edition:
- ISO IS 7873 edition 1 version 1
- ICS:
- 03.120.30
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 69/SC 4 - Applications of statistical methods in product and process management
- SKU
- ISO 7873:1993
