BS ISO 22514-4:2016 – TC:2020 Edition
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Tracked Changes. Statistical methods in process management. Capability and performance – Process capability estimates and performance measures
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 120 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 69 | Foreword |
| 70 | Introduction |
| 73 | 1 Scope 2 Symbols and abbreviated terms 2.1 Symbols |
| 75 | 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 |
| 76 | 3.4 Mean square error (MSE) 3.5 Reference limits 3.6 Reference interval (also known as process spread) 4 Capability 4.1 General |
| 78 | 4.2 Process capability 4.2.1 Normal distribution |
| 79 | 4.2.2 Non-normal distribution 4.3 Process location |
| 80 | 4.4 Process capability indices for measured data 4.4.1 General |
| 81 | 4.4.2 Cp index (for the normal distribution) |
| 82 | 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 |
| 83 | 4.5.2 Probability paper method 4.5.3 Pearson curves method |
| 84 | 4.5.4 Distribution identification method 4.6 Alternative method for describing and calculating process capability estimates |
| 85 | 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 |
| 87 | 4.8 Assessment of proportion out-of-specification (normal distribution) |
| 88 | 5 Performance 5.1 General 5.2 Process performance indices for measured data (normal distribution) 5.2.1 Pp index |
| 89 | 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 |
| 90 | 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 |
| 91 | 6 Reporting process capability and performance indices |
| 93 | Annex A (informative) Estimating standard deviations |
| 95 | Annex B (informative) Estimating capability and performance measures using Pearson curves — Procedure and example |
| 109 | Annex C (informative) Distribution identification |
| 114 | Annex D (informative) Confidence intervals |
| 116 | Bibliography |
