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BS EN ISO 4259-3:2020

BS EN ISO 4259-3:2020

Current

Current

The latest, up-to-date edition.

Petroleum and related products. Precision of measurement methods and results Monitoring and verification of published precision data in relation to methods of test

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

18-02-2020

Publisher

British Standards Institution

This document specifies the methodology for the regular monitoring of the test method precision achieved versus the precision published in the standard test method using data from proficiency testing schemes (PTSs) supported by the regular users of standard test methods.

This document specifies the methodology for the regular monitoring of the test method precision achieved versus the precision published in the standard test method using data from proficiency testing schemes (PTSs) supported by the regular users of standard test methods.The procedures in this document are designed specifically for proficiency testing (PT) conducted on standard test methods, having a published reproducibility, for petroleum and petroleum-related products, which are presumed to be homogeneous, and where the data distribution is approximately normal. In addition, it is applicable to properties of interest that are (known to be) stable over time and transport.This document specifies the methodology for the statistical comparison of standard deviation under reproducibility conditions achieved in PT programmes versus that published.The purpose of this comparison is to find out if the published reproducibility precision is representative of that achievable by the regular participants in the PT programmes.This document also provides guidance on how to use a PT z-score to monitor an individual participant’s performance over time (see AnnexB).

Committee
PTI/13
DocumentType
Standard
ISBN
9780580961922
Pages
24
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 4259-3:2020 Identical
EN ISO 4259-3:2020 Identical

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Hardcopy - English
PDF - English
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