I.S. EN ISO 4259-1:2017&A1:2019&A2:2020
Current
The latest, up-to-date edition.
Petroleum and related products - Precision of measurement methods and results - Part 1: Determination of precision data in relation to methods of test - Amendment 1 (ISO 4259-1:2017/Amd 1:2019)
Hardcopy , PDF
English
25-01-2021
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Stages in the planning of an interlaboratory study for the determination of the precision of a test method
5 Statistical treatment of ILS results
6 Analysis of variance, calculation and expression of precision estimates 7 R/r ratio
Annex A (normative) Determination of number of samples required
Annex B (informative) Derivation of formula for estimating the number of laboratories and samples required to meet minimum 30 degrees of freedom
Annex C (normative) Notation and tests
Annex D (normative) Illustration of procedures using ILS results for Bromine Number and statistical tables
Annex E (normative) Types of dependence and corresponding transformations
Annex F (normative) Weighted linear regression analysis
Annex G (normative) Rules for rounding
Annex H (normative) GESD technique to simultaneously identify multiple outliers in a data set
Annex I (informative) Glossary
Bibliography
This document specifies the methodology for the design of an Interlaboratory Study (ILS) and calculation of precision estimates of a test method specified by the study.
| Committee |
TC 28
|
| DocumentType |
Test Method
|
| Pages |
116
|
| ProductNote |
The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 4259-1:2017/Amd 2:2020 | Identical |
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