EN ISO 4259-2-2017 en Petroleum and related products - Precision of measurement methods and results - Part 2 Interpretation and application of precision data in relation to methods.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Petroleum and related products Precision of measurement methods and resultsPart 2: Interpretation and application of precision data in relation to methods of test (ISO 4259-2:2017)BS EN ISO 4259-2:2017EUROPEAN STANDARD

2、NORME EUROPENNE EUROPISCHE NORM EN ISO 4259-2 December 2017 ICS 75.080 Supersedes EN ISO 4259:2006English Version 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 4259-2:2017)

3、Produits ptroliers - Fidlit des mthodes de mesure et des rsultats - Partie 2: Application des valeurs de fidlit relatives aux mthodes dessai (ISO 4259-2:2017) Minerallerzeugnisse - Przision von Messverfahren und Ergebnissen - Teil 2: Anwendung der Werte fr die Przision von Prfverfahren (ISO 4259-2:2

4、017) This European Standard was approved by CEN on 27 October 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographica

5、l references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility o

6、f a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Ma

7、cedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI

8、SATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4259-2:2017 ENational forewordThis British Standard is the UK imple

9、mentation of EN ISO 42592:2017. It is identical to ISO 42592:2017. Together with BS EN ISO 42591:2017, it supersedes BS EN ISO 4259:2006, which is withdrawn.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include

10、all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 85640 2ICS 75.080Compliance with a British Standard cannot confer immunity from legal obligations. This British

11、Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 42592:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4259-2 December 2017 ICS 75.080 Su

12、persedes EN ISO 4259:2006English Version 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 4259-2:2017) Produits ptroliers - Fidlit des mthodes de mesure et des rsultats - Parti

13、e 2: Application des valeurs de fidlit relatives aux mthodes dessai (ISO 4259-2:2017) Minerallerzeugnisse - Przision von Messverfahren und Ergebnissen - Teil 2: Anwendung der Werte fr die Przision von Prfverfahren (ISO 4259-2:2017) This European Standard was approved by CEN on 27 October 2017. CEN m

14、embers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applic

15、ation to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Mana

16、gement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi

17、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue

18、de la Science 23, B-1040 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4259-2:2017 EBS EN ISO 42592:2017EN ISO 4259-2:2017 (E) 3 European foreword This document (EN ISO 4259-2:2017) has been prepared by Technica

19、l Committee ISO/TC 28 “Petroleum and related products, fuels and lubricants from natural or synthetic sources“ in collaboration with Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin” the secretariat of which is hel

20、d by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2018, and conflicting national standards shall be withdrawn at the latest by June 2018. Attention is drawn to the possibility that so

21、me of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 4259:2006. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followin

22、g countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw

23、ay, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4259-2:2017 has been approved by CEN as EN ISO 4259-2:2017 without any modification. BS EN ISO 42592:2017ISO 4259-2:2017(E)Foreword ivIntroduction

24、v1 Scope . 12 Normative references 13 Terms and definitions . 14 Application and significance of repeatability, r, and reproducibility, R 24.1 General . 24.2 Repeatability, r . 24.2.1 General 24.2.2 Acceptability of results . 24.2.3 Confidence limits calculations using results collected under repeat

25、ability conditions. 34.3 Reproducibility, R 34.3.1 Acceptability of results . 34.3.2 Confidence limits calculations using results collected under reproducibility conditions . 54.4 Use of reproducibility to determine bias between two different test methods that purport to measure the same property .

26、54.4.1 General 54.4.2 Process 55 Specifications . 65.1 Aim of specifications 65.2 Construction of specifications limits in relation to scope and precision of the specified test method 66 Assessment of quality conformance to specification . 76.1 General . 76.2 Assessment of quality conformance by the

27、 supplier . 86.3 Assessment of quality conformance by the recipient 96.3.1 General 96.3.2 Single batch of product . 96.3.3 Multiple batches of product . 96.3.4 Procedure for recipient to assess conformance for a single batch of product.107 Dispute procedure .117.1 Resolve dispute by negotiation 117.

28、2 Use of the test method or procedure in case of dispute .117.3 Dispute resolution procedure . 127.4 Dispute unresolved. 127.5 Example of a dispute resolution 14Annex A (informative) Explanation of formulae given in Clause 4 .15Annex B (informative) Dispute resolution for specifications based on a s

29、pecified degree of criticality .18Annex C (informative) Statistical control in the execution of test methods by a laboratory.21Annex D (informative) General approach to bias assessment using multiple materials 23Annex E (informative) Glossary 24Bibliography .25 ISO 2017 All rights reserved iiiConten

30、ts PageBS EN ISO 42592:2017ISO 4259-2:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each membe

31、r body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Elec

32、trotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types

33、of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be hel

34、d responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information

35、 given for the convenience of users and does not constitute an endorsement. For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) p

36、rinciples in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 28, Petroleum and related products, fuels and lubricants from natural or synthetic sources.This first edition of ISO 4259-2, together with

37、ISO 4259-1, cancels and replaces ISO 4259, which has been technically revised. This document provides the content of Clauses 7 to 10 of ISO 4259 and connected Annexes H and I. The remaining Clauses and Annexes A to G of ISO 4259:2006 are replaced by ISO 4259-1.A list of all parts in the ISO 4259 ser

38、ies can be found on the ISO website.iv ISO 2017 All rights reservedBS EN ISO 42592:2017ISO 4259-2:2017(E)IntroductionFor purposes of setting product specifications, and to check product compliance against these specifications, standard test methods are usually referenced for specific properties of c

39、ommercial petroleum and related products. Two or more measurements of the same property of a specific sample by a specific test method, or by different test methods that purport to measure the same property, will not usually give exactly the same result. It is, therefore, necessary to take proper ac

40、count of this fact when setting product specifications, assessing if the differences between test results are within statistical expectation, and making specification compliance decisions based on limited test results. By using statistically-based estimates of the precision for a test method, the fo

41、llowing can be achieved: an objective measure of the reliability of specification limits, a specification compliance decision, and the degree of agreement expected between two or more results obtained in specified circumstances.This document describes the applications of the precision of test method

42、 as derived from ISO 4259-1. It is intended to be a companion document to ISO 4259-1. Additional normative and informative discussions on how to use this precision to assess the “in statistical control” status and precision capability of a specific laboratory in the execution of a test method are pr

43、ovided. Also, the general approach to the agreement between two different test methods that purport to measure the same property are given.The two parts of ISO 4259 encompass both the determination of precision estimates and the application of precision data. It attempts to be aligned with ASTM D630

44、01regarding the determination of the precision estimates and with ASTM D32442for the utilization of test data.A glossary of the variables used in this document and ISO 4259-1 is included in ISO 4259-1:2017, Annex I. ISO 2017 All rights reserved vBS EN ISO 42592:2017Petroleum and related products Pre

45、cision of measurement methods and results Part 2: Interpretation and application of precision data in relation to methods of test1 ScopeThis document specifies the methodology for the application of precision estimates of a test method derived from ISO 4259-1. In particular, it defines the procedure

46、s for setting the property specification limits based upon test method precision where the property is determined using a specific test method, and in determining the specification conformance status when there are conflicting results between supplier and receiver. Other applications of this test me

47、thod 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

48、other types of homogeneous products. Careful investigations are necessary before applying this document to products for which the assumption of homogeneity can be questioned.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content cons

49、titutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4259-1, Petroleum and related products Precision of measurement methods and results Part 1: Determination of precision data in relation to methods of test3 Terms and definitionsFor the purposes of this document, the terms and definitions in ISO 4259-1 and the following apply.ISO and IEC maintain terminological da