ISO 7870-1:2019
Control charts — Part 1: General guidelines
This document presents key elements and the philosophy of the control chart approach, and identifies a wide variety of control charts (including those related to the Shewhart control chart, those stressing process acceptance or online process adjustment, and specialized control charts).
It presents an overview of the basic principles and concepts of control charts and illustrates the relationship among various control chart approaches to aid in the selection of the most appropriate part of ISO 7870 for given circumstances. It does not specify statistical control methods using control charts. These methods are specified in the relevant parts of ISO 7870.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 Concepts
5.1 Control chart
5.2 Statistical control of a process
5.3 Acceptance of a process
5.4 Management of a process with a natural drift
5.5 Risks of decision errors
5.6 Design of data collection
5.6.1 General
5.6.2 Choice of characteristic
5.6.3 Measurement process evaluation
5.6.4 Subgroup selection
5.6.5 Subgroup size
5.6.6 Sampling frequency
5.7 Control charts for variables and attributes data
6 Types of control charts
7 Charts for process stability
7.1 General
7.2 Partial listing of Shewhart and related control charts
7.2.1 General
7.2.2 Charts using data from only one rational subgroup for each plotted value
7.2.3 Charts using data from more than one subgroup for each plotted value
7.2.4 Charts for non-independent (autocorrelated) observations
8 Charts for process acceptance
8.1 General
8.2 Acceptance control charts (see ISO 7870-3)
8.3 Modified control charts (control charts with modified limits; see ISO 7870-3)
9 Process adjustment
Annex A (informative) Charting styles and colours for control charts
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 Concepts
5.1 Control chart
5.2 Statistical control of a process
5.3 Acceptance of a process
5.4 Management of a process with a natural drift
5.5 Risks of decision errors
5.6 Design of data collection
5.6.1 General
5.6.2 Choice of characteristic
5.6.3 Measurement process evaluation
5.6.4 Subgroup selection
5.6.5 Subgroup size
5.6.6 Sampling frequency
5.7 Control charts for variables and attributes data
6 Types of control charts
7 Charts for process stability
7.1 General
7.2 Partial listing of Shewhart and related control charts
7.2.1 General
7.2.2 Charts using data from only one rational subgroup for each plotted value
7.2.3 Charts using data from more than one subgroup for each plotted value
7.2.4 Charts for non-independent (autocorrelated) observations
8 Charts for process acceptance
8.1 General
8.2 Acceptance control charts (see ISO 7870-3)
8.3 Modified control charts (control charts with modified limits; see ISO 7870-3)
9 Process adjustment
Annex A (informative) Charting styles and colours for control charts
Bibliography