EN ISO 17637:2011
(Main)Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)
Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)
ISO 17637:2003 covers the visual examination of fusion welds in metallic materials. It may also be applied to visual examination of the joint prior to welding.
Zerstörungsfreie Prüfung von Schweißverbindungen - Sichtprüfung von Schmelzschweißverbindungen (ISO 17637:2003)
Diese Internationale Norm bezieht sich auf die Sichtprüfung von Schmelzschweißnähten bei metallischen Werkstoffen. Sie kann auch zur Sichtprüfung der Verbindung vor dem Schweißen angewendet werden.
Contrôle non destructif des assemblages soudés - Contrôle visuel des assemblages soudés par fusion (ISO 17637:2003)
L'ISO 17637:2003 traite du contrôle visuel des soudures par fusion des matériaux métalliques. L'ISO 17637:2003 peut également s'appliquer au contrôle visuel des assemblages avant soudage.
Neporušitveno preskušanje zvarov - Vizualni pregled zvarnih spojev pri talilnem varjenju (ISO 17637:2003)
Ta dokument zajema vizualni pregled zvarnih spojev pri talilnem varjenju na kovinskih materialih. Lahko se uporabi tudi za vizualni pregled spoja pred varjenjem.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Neporušitveno preskušanje zvarov - Vizualni pregled zvarnih spojev pri talilnem varjenju (ISO 17637:2003)Zerstörungsfreie Prüfung von Schweißverbindungen - Sichtprüfung von Schmelzschweißverbindungen (ISO 17637:2003)Contrôle non destructif des assemblages soudés - Contrôle visuel des assemblages soudés par fusion (ISO 17637:2003)Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)25.160.40Varjeni spoji in variWelded jointsICS:Ta slovenski standard je istoveten z:EN ISO 17637:2011SIST EN ISO 17637:2011en,de01-december-2011SIST EN ISO 17637:2011SLOVENSKI
STANDARDSIST EN 970:19981DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 17637
March 2011 ICS 25.160.40 Supersedes EN 970:1997English Version
Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003)
Contrôle non destructif des assemblages soudés -Contrôle visuel des assemblages soudés par fusion (ISO 17637:2003)
Zerstörungsfreie Prüfung von Schweißverbindungen - Sichtprüfung von Schmelzschweißverbindungen (ISO 17637:2003) This European Standard was approved by CEN on 13 February 2011.
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 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 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
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Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17637:2011: ESIST EN ISO 17637:2011
Reference numberISO 17637:2003(E)© ISO 2003
INTERNATIONAL STANDARD ISO17637First edition2003-07-15Non-destructive testing of welds — Visual testing of fusion-welded joints Contrôle non destructif des assemblages soudés — Contrôle visuel des assemblages soudés par fusion
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ii © ISO 2003 — All rights reserved
ISO 17637:2003(E) © ISO 2003 — All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Test conditions and equipment.1 3 Personnel qualification.1 4 Visual testing.2 4.1 General.2 4.2 Visual testing of joint preparation.2 4.3 Visual testing during welding.2 4.4 Visual testing of the finished weld.2 4.5 Visual testing of repaired welds.3 5 Test records.4 Annex A (informative)
Examples of testing equipment . 5 Bibliography.10
ISO 17637:2003(E) iv © ISO 2003 — All rights reserved Foreword ISO (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 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 Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 held responsible for identifying any or all such patent rights. ISO 17637 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of welds. SIST EN ISO 17637:2011
INTERNATIONAL STANDARD ISO 17637:2003(E) © ISO 2003 — All rights reserved 1 Non-destructive testing of welds — Visual testing of fusion-welded joints 1 Scope This International Standard covers the visual testing of fusion welds in metallic materials. It may also be applied to visual testing of the joint prior to welding. 2 Test conditions and equipment The illuminance at the surface shall be a minimum of 350 lx. However, 500 lx is recommended. For direct inspection, the access shall be sufficient to place the eye within 600 mm of the surface to be examined and at an angle not less than 30° (see Figure 1).
a Range Figure 1 — Access for testing Remote inspection using mirrors, boroscopes, fibre optic cables or cameras shall be considered when the access for testing in accordance with Figure 1 is not possible or when specified by an application standard. An additional light source can be used to increase the contrast and relief between imperfections and the background. Where the result of visual testing is inconclusive, the visual test should be supplemented by other non-destructive testing methods for surface inspections. Examples of equipment used for visual testing are given in Annex A. 3 Personnel qualification Visual testing of welds and the evaluation of results for final acceptance shall be performed by qualified and capable personnel. It is recommended that personnel be qualified in accordance with ISO 9712 or an equivalent standard at an appropriate level in the relevant industry sector. SIST EN ISO 17637:2011
ISO 17637:2003(E) 2 © ISO 2003 — All rights reserved 4 Visual testing 4.1 General This International Standard does not define the extent of visual testing. However, this should be determined in advance, e.g., by reference to an application or product standard. The examiner shall have access to the necessary inspection and production documentation required. Any visual testing prior to, during or after completion of the weld should be carried out while physical access is still possible. This may include the visual testing of surface treatments. 4.2 Visual testing of joint preparation When visual testing is required prior to welding, the joint shall be examined to check that: a) the shape and dimensions of the weld preparation meet the requirements of the welding procedure specification; b) the fusion faces and adjacent surfaces are clean and any required surface treatment has been carried out in accordance with the application or product standard; c) the parts to be welded are correctly fixed in relation to each other according to drawings or instructions. 4.3 Visual testing during welding When required, the weld shall be tested during the welding process to check that: a) each run or layer of weld metal is cleaned before it is covered by a further run, particular attention being paid to the junctions between the weld metal and the fusion face; b) there are no visible imperfections, e.g. cracks or cavities; if imperfections are observed, they shall be reported so that remedial action can be taken before the deposition of further weld metal; c) the transition between the runs and between the weld and the parent metal is so formed that satisfactory melting can be accomplished when welding the next run; d) the depth and shape of gouging is in accordance with the WPS or compared with the original groove shape in order to assure complete removal of the weld metal as specified; e) after any necessary repairs/remedial action, the weld conforms to the original requirements of the WPS. 4.4 Visual testing of the finished weld 4.4.1 General The finished weld shall be examined to determine whether it meets the requirements of the application or product standard or other agreed acceptance criteria, e.g. ISO 5817 or ISO 10042. Finished welds shall at least be examined in accordance with the requirements given in 4.4.2 to 4.4.5. 4.4.2 Cleaning and dressing The weld shall be examined to check that: a) all slag has been removed by manual or mechanical means in order to avoid imperfections being obscured; SIST EN ISO 17637:2011
ISO 17637:2003(E) © ISO 2003 — All rights reserved 3 b) there are no tool impressions or blow marks; c) when weld dressing is required, overheating of the joint due to grinding is avoided and that grinding marks and an uneven finish are also avoided; d) for fillet welds and butt welds to be dressed flush, the joint merges smoothly with the parent metal without under flushing. If imperfections (caused by dressing or otherwise) are observed, they shall be reported so that remedial action can be taken. 4.4.3 Profile and dimensions The weld shall be examined to check that: a) the profile of the weld face and the height of any excess weld metal meet the requirements of the acceptance standard (see 4.4.1); b) the surface of the weld is regular: the pattern and the pitch of weave marks present an even and satisfactory visual appearance; the distance between the last layer and the parent metal or the position of runs has been measured where required by the WPS; c) the weld width is consistent over the whole of the joint and that it meets the requirements given in the weld drawing or acceptance standard (see 4.4.1); in the case of butt welds, the weld preparation shall be checked to ensure that it has been completely filled. 4.4.4 Weld root and surfaces The visually
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