ISO 19983:2022
Rubber — Determination of precision of test methods
This document provides guidelines and specifies requirements for estimating the precision of rubber test methods by means of interlaboratory test programmes based on the procedures given in:
— Method A using ISO 5725 (all parts);
— Method B using ASTM D4483
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Interlaboratory test programme
6 Procedures
6.1 Application
6.2 Repeatability conditions
6.3 Day-to-day repeatability conditions
6.4 Reproducibility conditions
6.5 Testing elements
6.6 Planning
6.7 Methodology
6.7.1 Method A
6.7.2 Method B
6.7.3 Method A vs Method B — Day-to-day repeatability value
6.7.4 Method A vs Method B — Number of replicates
6.8 Detection of outliers
6.9 Treatment of outliers
7 Report
Annex A (normative) Calculations for method A
Annex B (normative) Calculations for method B
Annex C (normative) Calculating the h and k values (Mandel's statistics)
Annex D (informative) Example of general precision determination
Annex E (informative) Guidance for using precision results
Annex F (informative) Example of outlier treatment for method B
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Interlaboratory test programme
6 Procedures
6.1 Application
6.2 Repeatability conditions
6.3 Day-to-day repeatability conditions
6.4 Reproducibility conditions
6.5 Testing elements
6.6 Planning
6.7 Methodology
6.7.1 Method A
6.7.2 Method B
6.7.3 Method A vs Method B — Day-to-day repeatability value
6.7.4 Method A vs Method B — Number of replicates
6.8 Detection of outliers
6.9 Treatment of outliers
7 Report
Annex A (normative) Calculations for method A
Annex B (normative) Calculations for method B
Annex C (normative) Calculating the h and k values (Mandel's statistics)
Annex D (informative) Example of general precision determination
Annex E (informative) Guidance for using precision results
Annex F (informative) Example of outlier treatment for method B
Bibliography