SIST EN ISO 17643:2015
(Main)Non-destructive testing of welds - Eddy current testing of welds by complex-plane analysis (ISO 17643:2015)
Non-destructive testing of welds - Eddy current testing of welds by complex-plane analysis (ISO 17643:2015)
This International Standard defines eddy current testing techniques for detection of surface breaking
and near surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones,
base material).
Eddy current testing can also be specified for use with non-ferritic materials, for example in an
application standard.
The techniques can be applied to coated and uncoated objects during fabrication and in service, both
onshore and offshore.
Eddy current testing can be carried out on all accessible surfaces and on welds of almost any
configuration.
Unless otherwise specified at specific items in this International Standard, the general principles of
ISO 15549 apply.
NOTE Eddy current testing is usually performed in the as-welded condition. However, the accuracy of the
results can be affected by very rough surface finishes.
Zerstörungsfreie Prüfung von Schweißverbindungen - Wirbelstromprüfung von Schweißverbindungen durch Vektorauswertung (ISO 17643:2015)
Diese Internationale Norm legt Techniken der Wirbelstromprüfung für den Nachweis von Oberflächenfehlern und oberflächennahen rissartigen Unregelmäßigkeiten hauptsächlich in ferritischen Werkstoffen (Schweiß-nähten, Wärmeeinflusszonen, Grundwerkstoffen) fest.
Die Wirbelstromprüfung kann auch für nicht-ferritische Werkstoffe festgelegt werden, z. B. in einer Anwendungsnorm.
Die Techniken können bei beschichteten oder unbeschichteten Prüfgegenständen in der Herstellung und im Betrieb, Onshore und Offshore, verwendet werden.
Die Wirbelstromprüfung kann an allen zugänglichen Oberflächen von Schweißverbindungen in beinahe jeder Ausführung durchgeführt werden.
Wenn nichts anderes für spezielle Punkte in dieser Internationalen Norm festgelegt ist, gelten die allgemeinen Grundsätze von EN 12084.
ANMERKUNG Üblicherweise kann die Wirbelstromprüfung im Schweißzustand durchgeführt werden. Die Genauigkeit der Prüfergebnisse kann jedoch durch eine sehr raue Oberfläche beeinflusst werden.
Contrôle non destructif des assemblages soudés - Contrôle par courants de Foucault des assemblages soudés avec analyse des signaux dans le plan complexe (ISO 17643:2015)
ISO 17643:2015 définit des techniques de contrôle par courants de Foucault utilisées pour la détection des discontinuités débouchantes et de discontinuités planes sous-jacentes, principalement pour les matériaux ferritiques (assemblages soudés, zones affectées thermiquement, matériau de base).
Les contrôles par courants de Foucault peuvent aussi être appliqués à des matériaux non ferritiques par exemple dans des normes d'application.
Les techniques peuvent être mises en ?uvre sur des objets revêtus ou non revêtus, aussi bien en fabrication qu'en service, à la fois à terre ou en mer.
Les contrôles par courants de Foucault peuvent être effectués sur toutes les surfaces accessibles et sur les soudures qui peuvent avoir pratiquement n'importe quelle configuration.
Sauf spécification particulière pour des points précis de la présente Norme internationale, les principes généraux de l'ISO 15549 s'appliquent.
NOTE Les contrôles par courants de Foucault sont en général exécutés sur des pièces à l'état brut de soudage. Toutefois, l'exactitude des résultats peut-être affectée par un état de surface très rugueux.
Neporušitveno preskušanje zvarov - Preskušanje zvarov z metodo vrtinčnih tokov z vektorsko analizo (ISO 17643:2015)
Ta mednarodni standard določa tehnike preskušanja z metodo vrtinčnih tokov za odkrivanje površinskih zlomov in ploskovnih prekinitev pod površino, v glavnem v feritnih materialih (zvarih, področjih, izpostavljenih toploti, osnovnih materialih).
Preskušanje z metodo vrtinčnih tokov se lahko uporablja tudi za neferitne materiale, na primer v
standardu uporabe. Tehnike se lahko uporabljajo za prevlečene in neprevlečene predmete med izdelavo in servisiranjem, tako na kopnem kot na morju.
Preskušanje z metodo vrtinčnih tokov se lahko izvaja na vseh dostopnih površinah in zvarih v poljubni konfiguraciji. Če ni v posameznih točkah tega mednarodnega standarda določeno drugače, se uporabljajo splošna načela standarda ISO 15549.
OPOMBA Preskušanje z metodo vrtinčnih tokov se običajno izvaja v varjenem stanju. Vendar pa lahko zelo groba površina vpliva na točnost rezultatov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 17643:2015
01-december-2015
1DGRPHãþD
SIST EN 1711:2001
SIST EN 1711:2001/A1:2004
1HSRUXãLWYHQRSUHVNXãDQMH]YDURY3UHVNXãDQMH]YDURY]PHWRGRYUWLQþQLKWRNRY
]YHNWRUVNRDQDOL]R ,62
Non-destructive testing of welds - Eddy current testing of welds by complex-plane
analysis (ISO 17643:2015)
Zerstörungsfreie Prüfung von Schweißverbindungen - Wirbelstromprüfung von
Schweißverbindungen durch Vektorauswertung (ISO 17643:2015)
Contrôle non destructif des assemblages soudés - Contrôle par courants de Foucault
des assemblages soudés avec analyse des signaux dans le plan complexe (ISO
17643:2015)
Ta slovenski standard je istoveten z: EN ISO 17643:2015
ICS:
25.160.40 Varjeni spoji in vari Welded joints
SIST EN ISO 17643:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 17643:2015
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SIST EN ISO 17643:2015
EN ISO 17643
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2015
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN 1711:2000
English Version
Non-destructive testing of welds - Eddy current
examination of welds by complex plane analysis (ISO
17643:2015)
Contrôle non destructif des assemblages soudés - Zerstörungsfreie Prüfung von Schweißverbindungen -
Contrôle par courants de Foucault des assemblages Wirbelstromprüfung von Schweißverbindungen durch
soudés par analyse des signaux dans le plan complexe Vektorauswertung (ISO 17643:2015)
(ISO 17643:2015)
This European Standard was approved by CEN on 20 June 2015.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17643:2015 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 17643:2015
EN ISO 17643:2015 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 17643:2015
EN ISO 17643:2015 (E)
European foreword
This document (EN ISO 17643:2015) has been prepared by ISO/TC 44 “Welding and allied processes“ in
collaboration with Technical Committee CEN/TC 121 “Welding” 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 March 2016, and conflicting national standards shall
be withdrawn at the latest by March 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 1711:2000.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17643:2015 has been approved by CEN as EN ISO 17643:2015 without any modification.
3
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SIST EN ISO 17643:2015
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SIST EN ISO 17643:2015
INTERNATIONAL ISO
STANDARD 17643
Second edition
2015-09-01
Non-destructive testing of welds —
Eddy current testing of welds by
complex-plane analysis
Contrôle non destructif des assemblages soudés — Contrôle par
courants de Foucault des assemblages soudés avec analyse des
signaux dans le plan complexe
Reference number
ISO 17643:2015(E)
©
ISO 2015
---------------------- Page: 7 ----------------------
SIST EN ISO 17643:2015
ISO 17643:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 17643:2015
ISO 17643:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Personnel qualification . 1
5 Written procedures . 2
6 General applications . 2
6.1 Essential variables . 2
6.2 Additional information . 2
6.3 Surface conditions . 2
6.4 Equipment . 3
6.4.1 Instrumentation (excluding probe) . 3
6.4.2 Surface probes . 3
6.4.3 Accessories . 3
6.4.4 Systematic equipment maintenance . 5
6.5 Test procedure . 5
6.5.1 Evaluation mode . 5
6.5.2 Procedure for measuring coating thickness and material comparison
relative to calibration block . 5
6.5.3 Procedure for testing welds in ferritic materials . 6
6.6 Detectability of discontinuities .11
6.7 Procedure for testing welds in other materials .12
7 Test report .12
Annex A (informative) Recommended eddy current method flow diagram .14
© ISO 2015 – All rights reserved iii
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SIST EN ISO 17643:2015
ISO 17643:2015(E)
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.
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 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. 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 document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 5, Testing and inspection of welds.
This second edition cancels and replaces the first edition (ISO 17643:2005), which has been
technically revised.
iv © ISO 2015 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 17643:2015
INTERNATIONAL STANDARD ISO 17643:2015(E)
Non-destructive testing of welds — Eddy current testing of
welds by complex-plane analysis
1 Scope
This International Standard defines eddy current testing techniques for detection of surface breaking
and near surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones,
base material).
Eddy current testing can also be specified for use with non-ferritic materials, for example in an
application standard.
The techniques can be applied to coated and uncoated objects during fabrication and in service, both
onshore and offshore.
Eddy current testing can be carried out on all accessible surfaces and on welds of almost any
configuration.
Unless otherwise specified at specific items in this International Standard, the general principles of
ISO 15549 apply.
NOTE Eddy current testing is usually performed in the as-welded condition. However, the accuracy of the
results can be affected by very rough surface finishes.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 12718, Non-destructive testing — Eddy current testing — Vocabulary
ISO 15548-1, Non-destructive testing — Equipment for eddy current examination — Part 1: Instrument
characteristics and verification
ISO 15548-2, Non-destructive testing — Equipment for eddy current examination — Part 2: Probe
characteristics and verification
ISO 15548-3, Non-destructive testing — Equipment for eddy current examination — Part 3: System
characteristics and verification
ISO 15549, Non-destructive testing — Eddy current testing — General principles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12718 apply.
4 Personnel qualification
Non-destructive testing shall be performed by qualified and capable personnel. It is recommended that
personnel are qualified in accordance with ISO 9712 or an equivalent standard at an appropriate level
in the relevant industry sector.
© ISO 2015 – All righ
...
SLOVENSKI STANDARD
oSIST prEN ISO 17643:2013
01-december-2013
1HSRUXãLWYHQRSUHVNXãDQMH]YDUQLKVSRMHY3UHVNXãDQMH]YDURY]PHWRGR
YUWLQþQLKWRNRY]YHNWRUVNRDQDOL]R ,62',6
Non-destructive testing of welds - Eddy current testing of welds by complex-plane
analysis (ISO/DIS 17643:2013)
Zerstörungsfreie Prüfung von Schweißverbindungen - Wirbelstromprüfung von
Schweißverbindungen durch Vektorauswertung (ISO/DIS 17643:2013)
Contrôle non destructif des assemblages soudés - Contrôle par courants de Foucault
des assemblages soudés avec analyse des signaux dans le plan complexe (ISO/DIS
17643:2013)
Ta slovenski standard je istoveten z: prEN ISO 17643
ICS:
25.160.40 Varjeni spoji in vari Welded joints
oSIST prEN ISO 17643:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 17643:2013
---------------------- Page: 2 ----------------------
oSIST prEN ISO 17643:2013
DRAFT INTERNATIONAL STANDARD ISO/DIS 17643
ISO/TC 44/SC 5 Secretariat: AFNOR
Voting begins on Voting terminates on
2013-06-20 2013-11-20
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Non-destructive testing of welds — Eddy current testing of
welds by complex-plane analysis
Contrôle non destructif des assemblages soudés — Contrôle par courants de Foucault des assemblages
soudés avec analyse des signaux dans le plan complexe
[Revision of first edition (ISO 17643:2005)]
ICS 25.160.40
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
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.
© International Organization for Standardization, 2013
---------------------- Page: 3 ----------------------
oSIST prEN ISO 17643:2013
ISO/DIS 17643
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any
means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission.
Permission can be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 17643:2013
ISO/DIS 17643
Contents Page
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Personnel qualification . 1
5 Written procedures . 2
6 General applications . 2
6.1 Essential variables . 2
6.2 Additional information . 2
6.3 Surface conditions . 2
6.4 Equipment . 3
6.4.1 Instrumentation (excluding probe) . 3
6.4.2 Surface probes . 3
6.4.3 Accessories . 4
6.4.4 Systematic equipment maintenance . 5
6.5 Test procedure . 6
6.5.1 Procedure for measuring coating thickness and material comparison relative to
calibration block . 6
6.5.2 Procedure for testing welds in ferritic materials . 6
6.6 Detectability of discontinuities . 12
6.7 Procedure for testing welds in other materials . 13
7 Test report . 13
Annex A (informative) Recommended Eddy current method flow diagram . 15
Bibliography . 16
© ISO 2013 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 17643:2013
ISO/DIS 17643
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 17643 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 5, Testing and inspection of welds.
This second/third/. edition cancels and replaces the first/second/. edition (), [clause(s) / subclause(s) /
table(s) / figure(s) / annex(es)] of which [has / have] been technically revised.
Changes from the first edition include an informative Annex on method diagram.
iv © ISO 2013 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 17643:2013
DRAFT INTERNATIONAL STANDARD ISO/DIS 17643
Non-destructive testing of welds — Eddy current testing of
welds by complex-plane analysis
1 Scope
This International Standard defines eddy current testing techniques for detection of surface breaking and near
surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones, parent
materials).
Eddy current testing can also be specified for use with non-ferritic materials, for example in an application
standard.
The techniques can be applied to coated and uncoated objects during fabrication and in service, both onshore
and offshore.
Eddy current testing can be carried out on all accessible surfaces and on welds of almost any configuration.
Unless otherwise specified for specific points in this International Standard, the general principles of EN 12084
apply.
NOTE Eddy current testing is usually performed in the as-welded condition. However, the accuracy of the results can
be affected by very rough surface finishes.
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 any amendments) applies.
EN 1330-5, Non-destructive testing — Terminology — Part 5: Terms used in Eddy current testing
ISO 15549, Non-destructive testing — Eddy current testing — General principles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1330-5 apply.
4 Personnel qualification
Non-destructive testing shall be performed by qualified and capable personnel. It is recommended that
personnel are qualified in accordance with ISO 9712 or an equivalent standard at an appropriate level in the
relevant industry sector.
© ISO 2013 – All rights reserved 1
---------------------- Page: 7 ----------------------
oSIST prEN ISO 17643:2013
ISO/DIS 17643
5 Written procedures
If a written procedure is required, it should be prepared in accordance with ISO 15549. Otherwise, the
procedures detailed in this International Standard shall be followed.
6 General applications
6.1 Essential variables
Prior to eddy current testing, the following essential items shall be specified in accordance with ISO 15549:
⎯ certification of testing personnel;
⎯ testing plan;
⎯ testing equipment;
⎯ calibration of the equipment;
⎯ calibration blocks;
⎯ acceptance criteria;
⎯ recording of indications;
⎯ reporting format;
⎯ actions necessary for non-acceptable indications.
6.2 Additional information
Prior to eddy current testing, the following information should be specified. Further information may be
necessary for determination of the nature of the discontinuities and the composition or grade of the parent
material:
⎯ type of filler metal;
⎯ location and extent of welds to be tested;
⎯ weld surface geometry;
⎯ surface conditions;
⎯ coating type and thickness.
6.3 Surface conditions
Eddy current testing can be used to detect surface cracks through non-metallic coatings up to 2 mm thick. For
coating thicknesses greater than 2 mm, the sensitivity of the test method shall be demonstrated in advance
before eddy current testing is used.
NOTE 1 Eddy current testing is dependent on close contact between the probe and the test surface. For effective eddy
current testing of welds, it should be noted that local adverse weld form, excessive weld spatter, scale, rust and loose
paint can influence sensitivity by separating the probe from the test object and by inducing noisy responses.
NOTE 2 It should be noted that some types of conductive coating, such as thermally sprayed aluminium and lead, can
seriously influence the results as they can deposit electrically conductive metallic material in cracks open to the surface.
Cracks covered with such a metallic deposit are not always indicated by this method.
2 © ISO 2013 – All rights reserved
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oSIST prEN ISO 17643:2013
ISO/DIS 17643
6.4 Equipment
6.4.1 Instrumentation (excluding probe)
6.4.1.1 General
The instrumentation used for eddy current testing in accordance with this International Standard shall be
capable of analysis and display in the complex plane of both phase and amplitude and have at least the
...
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