BS EN ISO 23279-2017 Non-destructive testing of welds Ultrasonic testing Characterization of discontinuities in welds《焊缝的无损检测 超声波测试 焊缝中不连续性的表征》.pdf

1、Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017)BS EN ISO 23279:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 23279 September 2017 ICS

2、25.160.40 Supersedes EN ISO 23279:2010English Version Non-destructive testing of welds - Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017) Essais non destructifs des assemblages souds - Contrle par ultrasons - Caractrisation des discontinuits dans les assemblages sou

3、ds (ISO 23279:2017) Zerstrungsfreie Prfung von Schweiverbindungen - Ultraschallprfung - Charakterisierung von Inhomogenitten in Schweinhten (ISO 23279:2017)This European Standard was approved by CEN on 4 June 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipu

4、late 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 application to the CEN-CENELEC Management Centre or to any CEN member. This European S

5、tandard 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 Management Centre has the same status as the official versions. CEN members are the

6、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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,

7、 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: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form an

8、d by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 23279:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 23279:2017. It is identical to ISO 23279:2017. It supersedes BS EN ISO 23279:2010, which is withdrawn.The UK participation in its preparat

9、ion was entrusted to Technical Committee WEE/46, Non-destructive testing.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct ap

10、plication. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 92830 7ICS 25.160.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Co

11、mmittee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 23279:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 23279 September 2017 ICS 25.160.40 Supersedes EN ISO 23279:2010English Version Non-destructive testing of welds -

12、Ultrasonic testing - Characterization of discontinuities in welds (ISO 23279:2017) Essais non destructifs des assemblages souds - Contrle par ultrasons - Caractrisation des discontinuits dans les assemblages souds (ISO 23279:2017) Zerstrungsfreie Prfung von Schweiverbindungen - Ultraschallprfung - C

13、harakterisierung von Inhomogenitten in Schweinhten (ISO 23279:2017)This European Standard was approved by CEN on 4 June 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 w

14、ithout any alteration. Up-to-date lists and bibliographical 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 oth

15、er language made by translation under the responsibility of 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,

16、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, 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. EUROP

17、EAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 23279:2017 EB

18、S EN ISO 23279:2017EN ISO 23279:2017 (E) 3 European foreword This document (EN ISO 23279:2017) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN

19、. 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 March 2018, and conflicting national standards shall be withdrawn at the latest by March 2018. Attention is drawn to the possibility that some of

20、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 23279:2010. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following cou

21、ntries 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, Norway, P

22、oland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 23279:2017 has been approved by CEN as EN ISO 23279:2017 without any modification. ISO 23279:2017(E)Foreword iv1 Scope . 12 Normative references 13 Term

23、s and definitions . 14 Principle 15 Criteria 25.1 General . 25.2 Echo amplitude criteria (stages 1 and 2) . 35.2.1 Low amplitudes (stage 1) . 35.2.2 High amplitudes (stage 2) 35.3 Directional reflectivity criteria (stage 3) 35.3.1 Applicability based on length . 35.3.2 Application conditions 35.3.3

24、Criteria 35.4 Echo static pattern criteria (stage 4) . 45.5 Transverse echo dynamic pattern criteria (stage 5) 45.6 Complementary testing . 4Annex A (normative) Classification of indications from internal discontinuities in welds Flowchart procedure 5Annex B (informative) Directional reflectivity 8A

25、nnex C (informative) Basic echo dynamic patterns of reflectors .10 ISO 2017 All rights reserved iiiContents PageBS EN ISO 23279:2017ISO 23279:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 15 Criteria 25.1 General . 25.2 Echo amplitude criteria (stages 1

26、and 2) . 35.2.1 Low amplitudes (stage 1) . 35.2.2 High amplitudes (stage 2) 35.3 Directional reflectivity criteria (stage 3) 35.3.1 Applicability based on length . 35.3.2 Application conditions 35.3.3 Criteria 35.4 Echo static pattern criteria (stage 4) . 45.5 Transverse echo dynamic pattern criteri

27、a (stage 5) 45.6 Complementary testing . 4Annex A (normative) Classification of indications from internal discontinuities in welds Flowchart procedure 5Annex B (informative) Directional reflectivity 8Annex C (informative) Basic echo dynamic patterns of reflectors .10 ISO 2017 All rights reserved iii

28、Contents PageBS EN ISO 23279:2017ISO 23279:2017(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

29、member 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

30、 Electrotechnical 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 ty

31、pes 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

32、 be held 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 i

33、nformation 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 Organizatio

34、n (WTO) principles 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 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of welds.This third edition cancels and replaces

35、the second edition (ISO 23279:2010), which has been technically revised.Requests for official interpretations of any aspect of this document should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A complete listing of these bodies can be found at www .iso .org.iv I

36、SO 2017 All rights reservedBS EN ISO 23279:2017ISO 23279:2017(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 com

37、mittees. Each member 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

38、 International Electrotechnical 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 th

39、e different types 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.

40、 ISO shall not be held 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

41、 document is information 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 Tra

42、de Organization (WTO) principles 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 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of welds.This third edition cancels

43、 and replaces the second edition (ISO 23279:2010), which has been technically revised.Requests for official interpretations of any aspect of this document should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A complete listing of these bodies can be found at www

44、.iso .org.iv ISO 2017 All rights reserved INTERNATIONAL STANDARD ISO 23279:2017(E)Non-destructive testing of welds Ultrasonic testing Characterization of discontinuities in welds1 ScopeThis document specifies how to characterize indications from discontinuities by classifying them as originating fro

45、m planar or non-planar embedded discontinuities.This procedure is also suitable for indications from discontinuities that break the surface after removal of the weld reinforcement.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their conten

46、t constitutes 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 11666, Non-destructive testing of welds Ultrasonic testing Acceptance levelsISO 17640, Non-d

47、estructive testing of welds Ultrasonic testing Techniques, testing levels, and assessment3 Terms and definitionsNo terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t

48、 t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 PrincipleClassification of discontinuities as planar or non-planar is based on several parameters:a) welding techniques;b) geometrical position of the discontinuity;c) maximum echo amplitude;d)

49、directional reflectivity;e) echo static pattern (i.e. A-scan);f) echo dynamic pattern (envelope).The process of classification involves examining each of the parameters against all the others in order to arrive at an accurate conclusion.For guidance, Figure A.1 gives the classification of indications from internal weld discontinuities suitable for general applications. Figure A.1 should be applied in conjunction with the two parameters a) and b) listed above and not taken in isolation. ISO 2017 All rights reserv