DIN EN 1712-2002 焊缝的无损检验 焊接连接件的超声波检验 允许极限值.pdf

ICS 25 160 40 Zerst rungsfreie Pr fung von Schwei verbindungen Ultraschallpr fung von Schwei verbindungen Zul ssigkeitsgrenzen enth lt nderung A1 2002 European Standard EN 1712 1997 Amendment A1 2002 has the status of a DIN Standard A comma is used as the decimal marker National foreword This standard has been prepared by CEN TC 121 Welding Secretariat Denmark SC 5 Non destructive tests of welds The responsible German body involved in its preparation was the Normenausschuss Materialpr fung Materials Testing Standards Committee Technical Committee Ultraschallpr fung Amendments This standard differs from the September 1997 edition in that it has been editorially revised and Annex ZA has been included Previous edition DIN EN 1712 1997 09 Ref No DIN EN 1712 2002 09 English price group 08Sales No 1108 01 03 DEUTSCHE NORMSeptember 2002 EN 1712 Continued overleaf EN comprises 13 pages No part of this standard may be reproduced without the prior permission of DIN Deutsches Institut f r Normung e V Berlin Beuth Verlag GmbH 10772 Berlin Germany has the exclusive right of sale for German Standards DIN Normen Non destructive testing of welds Ultrasonic testing of welded joints Acceptance levels includes Amendment A1 2002 English version of DIN EN 1712 1997 A1 2002 Supersedes September 1997 edition B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 English version ICS 25 160 40 Descriptors Non destructive testing of welds Ultrasonic testing of welded joints Acceptance levels includes Amendment A1 2002 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national members Ref No EN 1712 1997 A1 2002 E Zerst rungsfreie Pr fung von Schwei verbindungen Ultraschall pr fung von Schwei verbindungen Zul ssigkeitsgrenzen enth lt nderung A1 2002 This European Standard was approved by CEN on 1997 07 24 and Amendment A1 on 2002 05 01 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 bibliographical references concerning such national stand ards may be obtained on application to the Management Centre or to any CEN member The European Standards exist 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 Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria Belgium the Czech Republic Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Malta the Netherlands Norway Portugal Spain Sweden Switzerland and the United Kingdom EN 1712 September 1997 Management Centre rue de Stassart 36 B 1050 Brussels European Committee for Standardization Comit Europ en de Normalisation Europ isches Komitee f r Normung Contr le non destructif des assemblages soud s Contr le par ultrasons des assemblages soud s Niveaux d acceptation amendement A1 2002 inclus A1 May 2002 Supersedes EN 1712 1997 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 2 EN 1712 1997 A1 2002 Contents Page Foreword to EN 1712 1997 2 Foreword to EN 1712 1997 A1 2002 2 1Scope 3 2Normative references 3 3Evaluations of indications 3 3 1General 3 3 2Sensitivity setting 4 3 3Reference level 4 3 4Evaluation level 5 3 5Recording level 5 3 6Measurement of indication length 5 4Acceptance levels 5 4 1General 5 4 2Longitudinal indications 6 4 3Transverse indications 6 4 4Indications detected by the tandem technique 6 4 5Linearly aligned and grouped indications 7 4 6Cumulative length of acceptable indications 7 5Examination report 7 Annex A informative Acceptance levels 8 Annex B normative Fixed amplitude level technique 12 Annex ZA informative Clauses of this European Standard addressing essential requirements or other provisions of EU directives 13 Foreword to EN 1712 1997 This European Standard has been prepared by Technical Committee CEN TC 121 Welding the Secretariat of which is held by DS This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of the relevant EU Directives This European Standard shall be given the status of a national standard either by publication of an identical text or by endorsement and conflicting national standards withdrawn by February 1998 at the latest In accordance with the CEN CENELEC Internal Regulations the national standards organizations of the following countries are bound to implement this European Standard Austria Belgium the Czech Republic Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg the Netherlands Norway Portugal Spain Sweden Switzerland and the United Kingdom Foreword to EN 1712 1997 A1 2002 This amendment to EN 1712 1997 has been prepared by Technical Committee CEN TC 121 Welding the Secretariat of which is held by DS This amendment has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports essential requirements of the relevant EU Directives For relationship with these directives see Annex ZA This amendment shall be given the status of a national standard either by publication of an identical text or by endorsement and conflicting national standards withdrawn by November 2002 at the latest In accordance with the CEN CENELEC Internal Regulations the national standards organizations of the following countries are bound to implement this European Standard Austria Belgium the Czech Republic Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Malta the Netherlands Norway Portugal Spain Sweden Switzerland and the United Kingdom B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 3 EN 1712 1997 A1 2002 This European Standard specifies ultrasonic acceptance levels 2 and 3 for full penetration welded joints in ferritic steels which correspond to quality levels B and C of EN 25817 Other acceptance levels can be used by specification An acceptance level corresponding to level D of EN 25817 has not been included in this standard as ultrasonic testing is not recommended for this weld quality These acceptance levels are applicable to testing carried out in accordance with the standards referred to in EN 12062 They can however be applied in conjunction with other rules where the same types of reference reflectors for sensitivity setting are used provided it is agreed between the contracting parties The standard is applicable to the testing of full penetration ferritic steel welds with thicknesses from 8 mm up to 100 mm It can also be used for other types of welds materials and thicknesses above 100 mm provided the testings have been performed with necessary consideration of the geometry and acoustical properties of the component and an adequate sensitivity can be employed to enable the acceptance levels of this standard to be applied The nominal frequency of probes used in this European Standard is between 2 MHz and 5 MHz unless attenuation or requirements for higher resolution call for another frequency The use of these acceptance levels in conjunction with frequencies outside this range needs to be considered carefully The evaluation of indications shall be performed on indications detected by testing performed in accordance with EN 1714 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 4 EN 1712 1997 A1 2002 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 5 EN 1712 1997 A1 2002 The acceptance levels shall be related to the testing techniques testing levels as defined in EN 1714 Acceptance level 2 will normally require at least testing level B and for acceptance level 3 at least testing level A Any other relationship between acceptance levels and testing levels shall be defined by specification B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 6 EN 1712 1997 A1 2002 Evaluation of indications may include discrimination between different types of discontinuity if defined in a specification In such case the characterisation as a planar indication may be used as the primary discrimination of an acceptable or rejectable indication In this case all indications with echo amplitude above the evaluation level shall be characterised and all that are characterised as planar shall be rejected For welds subject to fatigue loading near surface acceptance levels may be defined in a specification The acceptability of indications detected by the tandem technique is to be defined by specification B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 7 EN 1712 1997 A1 2002 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 8 EN 1712 1997 A1 2002 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 2366787001 2004 04 19 14 01 Page 9 EN 1712 1997 A1 2002 B55EB1B3C7662F79D1B59483A53B9F2F82C98BEEB793928A78C467B382C61E866DE10E2F87F34E8D91B869B14603ECBBAD0B89D103BC2D07EB7876E5628240DE1A26F7E816784EE74228000E0CA0206AF0BD6437B0B1BE9FF7746BD35D9569 Normen Download Beuth Alstom Power Generation AG KdNr 5281078 LfNr 23667