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EN ISO 4259-2:2026

Petroleum and related products - Precision of measurement methods and results - Part 2: Interpretation and application of precision data in relation to methods of test (ISO 4259-2:2026)

Edition date: 2026-06-17
In Force
Available languages: English, French
Summary: This document specifies the methodology for applying precision estimates of a test method derived from the processes specified in ISO 4259-1. In particular, it specifies the procedures for setting the property specification limits based upon test method precision where the property is determined using a specific test method, and determines the specification conformance status when there are conflicting results between supplier and receiver. Other applications of this test method precision are briefly described in principle without the associated procedures. The procedures in this document have been designed specifically for petroleum and petroleum-related products, which are normally homogeneous. However, the procedures described in this document can also be applied to other types of homogeneous products. This document is not applicable to non-homogenous products.

Le présent document spécifie la méthodologie pour l’application des estimations de fidélité d’une méthode d’essai déterminée selon les processus spécifiés dans l’ISO 4259-1. En particulier, il spécifie les procédures à suivre pour fixer les limites de spécification d’une caractéristique sur la base de la fidélité de la méthode d'essai lorsque la caractéristique est déterminée en utilisant une méthode d'essai spécifique, et il détermine la conformité à une spécification quand il y a des résultats contradictoires entre le fournisseur et le destinataire. D'autres applications de cette fidélité des méthodes d'essai sont brièvement décrites en principe sans les procédures associées. Les procédures du présent document ont été conçues spécifiquement pour les produits pétroliers et leurs produits connexes qui sont normalement homogènes. Cependant, les procédures décrites dans le présent document peuvent aussi s’appliquer à d’autres types de produits homogènes. Le présent document n’est pas applicable aux produits non-homogènes.

Dieses Dokument legt die Vorgehensweise für die Anwendung von Abschätzungen der Präzision eines Prüfverfahrens fest, das nach den Verfahren in ISO 4259 1 abgeleitet wurde. Insbesondere legt es die Verfahren für die Festlegung von Spezifikationsgrenzen einer Eigenschaft auf der Grundlage der Präzision eines Prüfverfahrens fest, wenn diese Eigenschaft unter Anwendung eines vorgegebenen Prüfverfahrens bestimmt wird, und bestimmt die Übereinstimmung mit der Spezifikation im Fall von widersprüchlichen Prüfergebnissen zwischen Lieferant und Abnehmer. Andere Anwendungen für die Präzision dieses Prüfverfahrens sind kurz beschrieben, ohne aber auf die zugehörigen Verfahrensweisen einzugehen. Die Verfahren in diesem Dokument wurden speziell für Mineralölerzeugnisse und verwandte Produkte entwickelt, die im Allgemeinen als homogene Produkte betrachtet werden. Die in diesem Dokument beschriebenen Verfahren können jedoch auch auf andere Arten von homogenen Erzeugnissen angewendet werden. Dieses Dokument ist nicht für nicht homogene Erzeugnisse anwendbar.
ICS: 75.080-Petroleum products in general
CTN: CEN/TC 19 - 6003

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