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EVS-EN ISO 4259-3:2020

Petroleum and related products - Precision of measurement methods and results - Part 3: Monitoring and verification of published precision data in relation to methods of test (ISO 4259-3:2020)

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Kehtiv alates 17.02.2020
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ISO 4259-3:2020; EN ISO 4259-3:2020
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17.02.2020
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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 Annex B).
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EVS-EN 13016-1:2018

Liquid petroleum products - Vapour pressure - Part 1: Determination of air saturated vapour pressure (ASVP) and calculated dry vapour pressure equivalent (DVPE)
Uusim versioon Kehtiv alates 16.04.2018
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EVS-EN ISO 4259-1:2017+A1:2020

Naftasaadused ja samaväärsed tooted. Mõõtemeetodite ja tulemuste täpsus. Osa 1: Katsemeetoditega seoses olevate täpsusandmete piiritlemine
Kehtiv alates 19.03.2020
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EVS-EN ISO 4259-2:2017+A1:2020

Naftasaadused ja samaväärsed tooted. Mõõtemeetodite ja tulemuste täpsus. Osa 2: Katsemeetoditega seoses olevate täpsusandmete tõlgendamine ja kohaldamine
Uusim versioon Kehtiv alates 19.03.2020
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CEN/TS 15414-1:2010

Solid recovered fuels - Determination of moisture content using the oven dry method - Part 1: Determination of total moisture by a reference method
Uusim versioon Kehtiv alates 06.07.2010