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1、a Date: 15 June 2007 Origin: European Latest date for receipt of comments: 30 September 2007 Project no.: 2005/01686 Responsible committee: WEE/46 Non-destructive testing Interested committees: WEE/46/-/13 Title: Draft BS EN 1714REV Non-destructive testing of welds - Ultrasonic testing of welded joi
2、nts Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN1714 : 1998 (R03) and partially supersede. NONE If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNIN
3、G: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 September 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See
4、overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circulation is limited to d
5、issemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standar
6、ds on CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-reference
7、s The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7120 Responsible Committee Secretary: Mrs A Hannan (BSI) E-mail: anne.hannanbsi- Dra
8、ft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 07/30135963 DC Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) B
9、SI b Introduction This draft standard is based on European discussions in which the UK has taken an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent British Standard. If no comments are received to the contrary, then the UK will approve this d
10、raft and implement it as a British Standard. Comment is particularly welcome on national, legislative or similar deviations that may be necessary. Even if this draft standard is not approved by the UK, if it receives the necessary support in Europe, the UK will be obliged to publish the official Eng
11、lish Language text unchanged as a British Standard and to withdraw any conflicting standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive
12、 efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible wi
13、th Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Furth
14、er information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at: http:/www.bsi- Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ An
15、nex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains
16、connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Mi
17、crosoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM DRAFT prEN 1714 June 2007 ICSWill supersede EN 1714:1997 English Version Non-destructive te
18、sting of welds - Ultrasonic testing of welded joints Contrle non destructif des assemblages souds - Contrle par ultrasons des assemblages souds Zerstrungsfreie Prfung von Schweiverbindungen - Ultraschallprfung von Schweiverbindungen This draft European Standard is submitted to CEN members for enquir
19、y. It has been drawn up by the Technical Committee CEN/TC 121. If this draft becomes a European Standard, 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 alteratio
20、n. This draft European Standard was established by CEN 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 Management Centre has the same status as the officia
21、l versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slove
22、nia, Spain, Sweden, Switzerland and United Kingdom. Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation. Warning : This document is not a European Standard. It is distributed f
23、or review and comments. It is subject to change without notice and shall not be referred to as a European Standard. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploi
24、tation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 1714:2007: E Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI prEN 1714:2007 (E) 2 Contents Page Foreword4 1 Scope 5
25、 2 Normative references5 3 Definitions and symbols .6 4 General6 5 Information required prior to testing.7 5.1 Items to be specified .7 5.2 Specific information required before testing7 5.3 Written testing procedure.8 6 Requirements for personnel and equipment8 6.1 Personnel qualifications .8 6.2 Eq
26、uipment 8 6.3 Probe parameters 8 6.3.1 Test frequency .8 6.3.2 Angles of incidence.8 6.3.3 Element size.9 6.3.4 Adaption of probes to curved scanning surfaces9 6.3.5 Coupling media9 7 Testing volume.9 8 Preparation of scanning surfaces10 9 Parent metal testing 10 10 Range and sensitivity setting.11
27、10.1 General11 10.2 Reference for sensitivity setting11 10.3 Evaluation levels13 10.4 Transfer correction13 10.5 Signal to noise ratio 13 11 Testing levels.13 12 Testing techniques14 12.1 General14 12.2 Manual scan path.14 12.3 Testing for imperfections perpendicular to the testing surface.14 12.4 L
28、ocation of indications .14 12.5 Evaluation of indications 15 12.5.1 General15 12.5.2 Maximum echo amplitude.15 12.5.3 Indication length15 12.5.4 Indication height15 12.5.5 Characterization of imperfections15 13 Test report16 13.1 General16 13.2 General data.16 13.3 Information relating to equipment
29、.16 13.4 Information relating to testing technique16 13.5 Results of the test17 Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI prEN 1714:2007 (E) 3 Annex A (normative) Testing levels for various types of welde
30、d joints .18 Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI prEN 1714:2007 (E) 4 Foreword This document (prEN 1714:2007) has been prepared by Technical Committee CEN/TC 121 “Welding”, the secretariat of which
31、is held by DIN. This document is currently submitted to the CEN Enquiry. This document will supersede EN 1714:1997, EN 1714:1997/A1:2002, EN 1714:1997/A2:2003. Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI pr
32、EN 1714:2007 (E) 5 1 Scope This European Standard specifies techniques for the manual ultrasonic testing of fusion welded joints in metallic materials equal to and above 8 mm thick which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0C to 60C. It is
33、primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic. Where material dependent ultrasonic values are specified in this standard they are based on steels having an ultrasonic sound velocity of 5920 50 m/s for longitudinal waves, and 3255
34、30 m/s for transverse waves. The standard specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B and C is given in annex A. The requirements of testing level D, which is intended for special applica
35、tions, shall be in accordance with the general requirements of this standard and may only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, tests at object temperatures outside the range
36、. This standard may be used for the assessment of indications, for acceptance purposes, by either of the following techniques: a) Evaluation based primarily on length and echo amplitude of the signal indication; b) Evaluation based on characterization and sizing of the indication by probe movement t
37、echniques. The techniques used shall be specified. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
38、any amendments) applies. EN 473, Qualification and certification of NDT personnel General principles EN 583-1, Non-destructive testing Ultrasonic examination Part 1: General principles EN 583-2, Non-destructive testing Ultrasonic examination Part 2: Sensitivity and range setting EN 583-4, Non-destru
39、ctive testing Ultrasonic examination Part 4: Examination for discontinuities perpendicular to the surface EN 1330-4, Non-destructive testing Terminology Part 4: Terms used in ultrasonic testing EN 1712, Non-destructive examination of welds Ultrasonic examination of welded joints Acceptance levels EN
40、 1713, Non-destructive examination of welds Ultrasonic examination Characterization of imperfections in welds; EN 12062, Non-destructive examination of welds General rules for metallic materials; EN ISO 5817, Arc-welded joints in steel Guidance on quality levels for imperfections; Licensed Copy: Lon
41、don South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI prEN 1714:2007 (E) 6 EN 12668-1, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 1: Instruments EN 12668-2, Non-destructive testi
42、ng Characterization and verification of ultrasonic examination equipment Part 2: Probes EN 12668-3, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 3: Combined equipment 3 Definitions and symbols For the purposes of this standard, the definitions gi
43、ven in EN12062 and EN 1330-4 apply. For quantities and symbols, see table 1. Indications shall be considered to be either longitudinal or transverse, depending on the direction of their major dimension with respect to the weld axis, x, in accordance with figure 2. Table 1 Quantities and symbols Symb
44、ol Quantity Unit t Thickness of parent material (thinnest part) mm DDSR Diameter of a disc shaped reflector mm DSDH Diameter of a side-drilled hole mm l Length of the indication mm h Extension of the indication in depth direction mm x Position of the indication in the longitudinal direction mm y Pos
45、ition of the indication in the transverse direction mm z Position of the indication in depth mm lz Projected length of the indication in depth mm lx Projected length of the indication in the x-direction mm ly Projected length of the indication in the y-direction mm p Full skip distance mm 4 General
46、The purpose of this standard is to describe general techniques of ultrasonic testing, using standard criteria, for the most commonly used weld joints at object temperatures in the range of 0C and 60C. The specific requirements specified by this standard cover the equipment, preparation, performance
47、of the testing and reporting. The parameters specified, in particular those for the probes, are compatible with the requirements of Licensed Copy: London South Bank University, London South Bank University, Tue Jul 03 01:02:10 GMT+00:00 2007, Uncontrolled Copy, (c) BSI prEN 1714:2007 (E) 7 EN 1712 a
48、nd EN 1713, and are also suitable for use with other acceptance criteria standards. The techniques recommended in this standard are suitable for the detection of those weld imperfections specified in typical weld acceptance standards. Techniques to be used for ultrasonic assessment of indications an
49、d acceptance criteria shall be defined by specification. If the agreed acceptance criteria require a more precise determination of the height and nature of the defect, this may necessitate the use of techniques outside the scope of this standard. 5 Information required prior to testing 5.1 Items to be specified method for setting the reference level; method to be used for evaluation of indications; accepta