BS ISO 13528:2015 – TC:2020 Edition
$280.87
Tracked Changes. Statistical methods for use in proficiency testing by interlaboratory comparison
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 266 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS ISO 13528:2015 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 169 | Foreword |
| 170 | 0 Introduction |
| 173 | 1 Scope 2 Normative references 3 Terms and definitions |
| 176 | 4 General principles 4.1 General requirements for statistical methods |
| 177 | 4.2 Basic model 4.3 General approaches for the evaluation of performance |
| 178 | 5 Guidelines for the statistical design of proficiency testing schemes 5.1 Introduction to the statistical design of proficiency testing schemes 5.2 Basis of a statistical design |
| 179 | 5.3 Considerations for the statistical distribution of results |
| 180 | 5.4 Considerations for small numbers of participants 5.5 Guidelines for choosing the reporting format |
| 182 | 6 Guidelines for the initial review of proficiency testing items and results 6.1 Homogeneity and stability of proficiency test items |
| 183 | 6.2 Considerations for different measurement methods 6.3 Blunder removal 6.4 Visual review of data |
| 184 | 6.5 Robust statistical methods 6.6 Outlier techniques for individual results |
| 185 | 7 Determination of the assigned value and its standard uncertainty 7.1 Choice of method of determining the assigned value |
| 186 | 7.2 Determining the uncertainty of the assigned value |
| 187 | 7.3 Formulation 7.4 Certified reference material |
| 188 | 7.5 Results from one laboratory |
| 189 | 7.6 Consensus value from expert laboratories |
| 190 | 7.7 Consensus value from participant results |
| 191 | 7.8 Comparison of the assigned value with an independent reference value |
| 192 | 8 Determination of criteria for evaluation of performance 8.1 Approaches for determining evaluation criteria 8.2 By perception of experts 8.3 By experience from previous rounds of a proficiency testing scheme |
| 193 | 8.4 By use of a general model |
| 194 | 8.5 Using the repeatability and reproducibility standard deviations from a previous collaborative study of precision of a measurement method 8.6 From data obtained in the same round of a proficiency testing scheme |
| 195 | 8.7 Monitoring interlaboratory agreement 9 Calculation of performance statistics 9.1 General considerations for determining performance |
| 196 | 9.2 Limiting the uncertainty of the assigned value |
| 197 | 9.3 Estimates of deviation (measurement error) |
| 198 | 9.4 z scores |
| 199 | 9.5 z′ scores |
| 200 | 9.6 Zeta scores (ζ) |
| 201 | 9.7 En scores 9.8 Evaluation of participant uncertainties in testing |
| 202 | 9.9 Combined performance scores |
| 203 | 10 Graphical methods for describing performance scores 10.1 Application of graphical methods 10.2 Histograms of results or performance scores |
| 204 | 10.3 Kernel density plots |
| 205 | 10.4 Bar-plots of standardized performance scores 10.5 Youden Plot |
| 206 | 10.6 Plots of repeatability standard deviations |
| 207 | 10.7 Split samples |
| 208 | 10.8 Graphical methods for combining performance scores over several rounds of a proficiency testing scheme |
| 209 | 11 Design and analysis of qualitative proficiency testing schemes (including nominal and ordinal properties) 11.1 Types of qualitative data 11.2 Statistical design |
| 210 | 11.3 Assigned values for qualitative proficiency testing schemes |
| 211 | 11.4 Performance evaluation and scoring for qualitative proficiency testing schemes |
| 214 | Annex A (normative) Symbols |
| 216 | Annex B (normative) Homogeneity and stability of proficiency test items |
| 224 | Annex C (normative) Robust analysis |
| 235 | Annex D (informative) Additional Guidance on Statistical Procedures |
| 239 | Annex E (informative) Illustrative Examples |
| 261 | Bibliography |
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