ISO 7873:1993
Control charts for arithmetic average with warning limits
- Standard No.
- ISO 7873:1993
- Release Date
- 1993
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 7873:1993
- Scope
- 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.
ISO 7873:1993 history
- 1993 ISO 7873:1993 Control charts for arithmetic average with warning limits
