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BS ISO 22514-4:2016

BS ISO 22514-4:2016

$198.66

Statistical methods in process management. Capability and performance – Process capability estimates and performance measures

Published By Publication Date Number of Pages
BSI 2016 58
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This part of ISO 22514 describes process capability and performance measures that are commonly used.

PDF Catalog

PDF Pages PDF Title
7 Foreword
8 Introduction
11 1 Scope
2 Symbols and abbreviated terms
2.1 Symbols
13 2.2 Abbreviated terms
3 Basic concepts used for process capability and performance
3.1 General
3.2 Location
3.3 Dispersion
3.3.1 Inherent dispersion
3.3.2 Total dispersion
3.3.3 Short-term dispersion
14 3.4 Mean square error (MSE)
3.5 Reference limits
3.6 Reference interval (also known as process spread)
4 Capability
4.1 General
16 4.2 Process capability
4.2.1 Normal distribution
17 4.2.2 Non-normal distribution
4.3 Process location
18 4.4 Process capability indices for measured data
4.4.1 General
19 4.4.2 Cp index (for the normal distribution)
20 4.4.3 Cpk index (for the normal distribution)
4.4.4 Cpk index for unilateral tolerances
4.5 Process capability indices for measured data (non-normal)
4.5.1 General
21 4.5.2 Probability paper method
4.5.3 Pearson curves method
22 4.5.4 Distribution identification method
4.6 Alternative method for describing and calculating process capability estimates
23 4.7 Other capability measures for continuous data
4.7.1 Process capability fraction (PCF)
4.7.2 Indices when the specification limit is one-sided or no specification limit is given
25 4.8 Assessment of proportion out-of-specification (normal distribution)
26 5 Performance
5.1 General
5.2 Process performance indices for measured data (normal distribution)
5.2.1 Pp index
27 5.2.2 Ppk index
5.3 Process performance indices for measured data (non-normal distribution)
5.3.1 General
5.3.2 Probability paper method
28 5.3.3 Pearson curves method
5.3.4 Distribution identification method
5.4 Other performance indices for measured data
5.5 Assessment of proportion out-of-specification for a normal distribution of the total distribution
29 6 Reporting process capability and performance indices
31 Annex A (informative) Estimating standard deviations
33 Annex B (informative) Estimating capability and performance measures using Pearson curves — Procedure and example
47 Annex C (informative) Distribution identification
52 Annex D (informative) Confidence intervals
54 Bibliography

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BS ISO 22514-4:2016
$198.66