EN IS0 17640 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM November2018 ICS 25.160.40 Supersedes ENIS017640:2017 English Version Non-destructive testing of welds - Ultrasonic testing Techniques, testing levels, and assessment (IsO 17640:2018) Essais non destructifs des assemblages soudes Controle par ultrasons - Techniques, niveaux d'essai et évaluation (Is0 17640:2018) This European Standard was approved by CEN on 11 October 2018. CEN members arebound to complywith the CEN/CENELEC Internal Regulations which stipulate the conditions forgivingthis 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 Standard exists in three official versions (English, French, German). A version in any other language made by 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2018CEN All rights of exploitation in any form and by any means reserved Ref.No.EN ISO 17640:2018 E worldwideforCENnationalMembers ENIS017640:2018 (E) Europeanforeword This document (ENIS017640:2018) has been prepared by Technical Committee IS0/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. 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of an identical text or by endorsement, at the latest by May 2019, and conflicting national standards shall be withdrawn at thelatest by May 2019. Attention is drawn to the possibility that some 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 IS0 17640:2017. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following 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, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland Turkey and the United Kingdom. Endorsement notice The text of IS0 17640:2018 has been approved by CEN as ENIS0 17640:2018 without any modification 3