SIST EN ISO 17638:2017
(Main)Non-destructive testing of welds - Magnetic particle testing (ISO 17638:2016)
Non-destructive testing of welds - Magnetic particle testing (ISO 17638:2016)
This document specifies techniques for detection of surface imperfections in welds in ferromagnetic
materials, including the heat affected zones, by means of magnetic particle testing. The techniques are
suitable for most welding processes and joint configurations. Variations in the basic techniques that
will provide a higher or lower test sensitivity are described in Annex A.
This document does not specify acceptance levels of the indications. Further information on acceptance
levels for indications may be found in ISO 23278 or in product or application standards.
Zerstörungsfreie Prüfung von Schweißverbindungen - Magnetpulverprüfung (ISO 17638:2016)
Contrôle non destructif des assemblages soudés - Contrôle par magnétoscopie (ISO 17638:2016)
ISO 17638:2016 spécifie les techniques pour la détection par magnétoscopie des défauts de surface des soudures de matériaux ferromagnétiques, y compris les zones affectées thermiquement, à l'aide de la technique d'aimantation. Les techniques sont appropriées pour la plupart des procédés de soudage et des configurations d'assemblages. Des variantes des techniques de base donnant une sensibilité plus élevée ou plus faible sont décrites dans l'Annexe A.
ISO 17638:2016 ne spécifie pas des niveaux d'acceptation pour les indications. Des informations complémentaires sur les niveaux d'acceptation peuvent être trouvées dans l'ISO 23278 ou dans les normes d'application ou les normes de produit.
Neporušitveno preskušanje zvarov - Preskušanje z magnetnimi delci (ISO 17638:2016)
Ta dokument določa tehnike za odkrivanje površinskih nepravilnosti zvarov pri feromagnetnih materialih, vključno s področji, izpostavljenimi toploti, s preskušanjem z magnetnimi delci. Tehnike so primerne za večino postopkov varjenja in konfiguracije spojev. Različice osnovnih tehnik, ki vključujejo višjo ali nižjo občutljivost preskušanja, so opisane v dodatku A. Ta dokument ne določa stopenj sprejemljivosti za indikacije. Več informacij o stopnjah sprejemljivosti za indikacije je mogoče najti v standardu ISO 23278, standardih za proizvode ali standardih uporabe.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 17638:2017
01-marec-2017
1DGRPHãþD
SIST EN ISO 17638:2010
Neporušitveno preskušanje zvarov - Preskušanje z magnetnimi delci (ISO
17638:2016)
Non-destructive testing of welds - Magnetic particle testing (ISO 17638:2016)
Zerstörungsfreie Prüfung von Schweißverbindungen - Magnetpulverprüfung (ISO
17638:2016)
Contrôle non destructif des assemblages soudés - Contrôle par magnétoscopie (ISO
17638:2016)
Ta slovenski standard je istoveten z: EN ISO 17638:2016
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
SIST EN ISO 17638:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 17638:2017
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SIST EN ISO 17638:2017
EN ISO 17638
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2016
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 17638:2009
English Version
Non-destructive testing of welds - Magnetic particle
testing (ISO 17638:2016)
Contrôle non destructif des assemblages soudés - Zerstörungsfreie Prüfung von Schweißverbindungen -
Magnétoscopie (ISO 17638:2016) Magnetpulverprüfung (ISO 17638:2016)
This European Standard was approved by CEN on 2 October 2016.
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
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17638:2016 E
worldwide for CEN national Members.
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SIST EN ISO 17638:2017
EN ISO 17638:2016 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 17638:2017
EN ISO 17638:2016 (E)
European foreword
This document (EN ISO 17638:2016) has been prepared by Technical Committee ISO/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 2017, and conflicting national standards shall be
withdrawn at the latest by May 2017.
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 ISO 17638:2009.
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 17638:2016 has been approved by CEN as EN ISO 17638:2016 without any modification.
3
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SIST EN ISO 17638:2017
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SIST EN ISO 17638:2017
INTERNATIONAL ISO
STANDARD 17638
Second edition
2016-10-15
Non-destructive testing of welds —
Magnetic particle testing
Contrôle non destructif des assemblages soudés — Magnétoscopie
Reference number
ISO 17638:2016(E)
©
ISO 2016
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SIST EN ISO 17638:2017
ISO 17638:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, 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 2016 – All rights reserved
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SIST EN ISO 17638:2017
ISO 17638:2016(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Safety precautions . 1
5 General . 1
5.1 Information required prior to testing . 1
5.2 Additional pre-test information . 2
5.3 Personnel qualification . 2
5.4 Surface conditions and preparation . 2
5.5 Magnetizing . 2
5.5.1 Magnetizing equipment . 2
5.5.2 Verification of magnetization . 3
5.6 Application techniques . 3
5.6.1 Field directions and testing area . 3
5.6.2 Typical magnetic testing techniques . 6
5.7 Detection media . 9
5.7.1 General. 9
5.7.2 Verification of detection media performance . 9
5.8 Viewing conditions .10
5.9 Application of detection media .10
5.10 Overall performance test .10
5.11 False indications .10
5.12 Recording of indications .10
5.13 Demagnetization .11
5.14 Test report .11
Annex A (informative) Variables affecting the sensitivity of magnetic particle testing .13
Bibliography .15
© ISO 2016 – All rights reserved iii
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SIST EN ISO 17638:2017
ISO 17638:2016(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 World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
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 17638:2003), which has been technically
revised.
Requests for official interpretations of any aspect of this document should be directed to the Secretariat
of ISO/TC 44/SC 5 via your national standards body. A complete listing of these bodies can be found at
www.iso.org.
iv © ISO 2016 – All rights reserved
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SIST EN ISO 17638:2017
INTERNATIONAL STANDARD ISO 17638:2016(E)
Non-destructive testing of welds — Magnetic particle testing
1 Scope
This document specifies techniques for detection of surface imperfections in welds in ferromagnetic
materials, including the heat affected zones, by means of magnetic particle testing. The techniques are
suitable for most welding processes and joint configurations. Variations in the basic techniques that
will provide a higher or lower test sensitivity are described in Annex A.
This document does not specify acceptance levels of the indications. Further information on acceptance
levels for indications may be found in ISO 23278 or in product or application standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO 3059, Non-destructive testing — Penetrant testing and magnetic particle testing — Viewing conditions
ISO 9934-1:2015, Non-destructive testing — Magnetic particle testing — Part 1: General principles
ISO 9934-2, Non-destructive testing — Magnetic particle testing — Part 2: Detection media
ISO 9934-3, Non-destructive testing — Magnetic particle testing — Part 3: Equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12707 and ISO 17635 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Safety precautions
Special consideration shall be given to toxic, inflammable and/or volatile materials, electrical safety
and unfiltered UV radiation.
Magnetic particle testing often creates high magnetic fields close to the object under test and the
magnetising equipment. Items sensitive to these fields should be excluded from such areas.
5 General
5.1 Information required prior to testing
Prior to testing, the following items shall be specified (where applicable):
a) specific test procedure;
b) certification requirements for NDT personnel;
© ISO 2016 – All rights reserved 1
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SIST EN ISO 17638:2017
ISO 17638:2016(E)
c) extent of coverage;
d) state of manufacture;
e) testing techniques to be used;
f) overall performance test;
g) any demagneti
...
SLOVENSKI STANDARD
oSIST prEN ISO 17638:2015
01-junij-2015
Neporušitvene preiskave zvarnih spojev - Preiskave z magnetnimi delci (ISO/DIS
17638:2015)
Non-destructive testing of welds - Magnetic particle testing (ISO/DIS 17638:2015)
Zerstörungsfreie Prüfung von Schweißverbindungen - Magnetpulverprüfung (ISO/DIS
17638:2015)
Contrôle non destructif des assemblages soudés - Contrôle par magnétoscopie (ISO/DIS
17638:2015)
Ta slovenski standard je istoveten z: prEN ISO 17638 rev
ICS:
25.160.40 Varjeni spoji in vari Welded joints
oSIST prEN ISO 17638:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 17638:2015
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oSIST prEN ISO 17638:2015
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17638
ISO/TC 44/SC 5 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2015-03-19 2015-06-19
Non-destructive testing of welds — Magnetic particle testing
Contrôle non destructif des assemblages soudés — Contrôle par magnétoscopie
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
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
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
Reference number
NATIONAL REGULATIONS.
ISO/DIS 17638:2015(E)
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. ISO 2015
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oSIST prEN ISO 17638:2015
ISO/DIS 17638:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015
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 2015 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 17638:2015
ISO/DIS 17638:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Safety precautions . 1
5 General . 1
5.1 Information required prior to testing . 1
5.2 Additional pre-test information . 2
5.3 Personnel qualification . 2
5.4 Surface conditions and preparation . 2
5.5 Magnetizing . 2
5.5.1 Magnetizing equipment . 2
5.5.2 Verification of magnetization . 3
5.6 Application techniques . 3
5.6.1 Field directions and testing area . 3
5.6.2 Typical magnetic testing techniques . 6
5.7 Detection media . 9
5.7.1 General. 9
5.7.2 Verification of detection media performance . 9
5.8 Viewing conditions .10
5.9 Application of detection media .10
5.10 Overall performance test .10
5.11 False indications .10
5.12 Recording of indications .10
5.13 Demagnetization .11
5.14 Test report .11
Annex A (informative) Variables affecting the sensitivity of magnetic particle testing .13
Bibliography .15
© ISO 2015 – All rights reserved iii
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oSIST prEN ISO 17638:2015
ISO/DIS 17638:2015(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
ISO 17638 was prepared by Technical Committee 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 17638:2003), of which have been
technically revised.
iv © ISO 2015 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 17638:2015
DRAFT INTERNATIONAL STANDARD ISO/DIS 17638:2015(E)
Non-destructive testing of welds — Magnetic particle testing
1 Scope
This International Standard specifies techniques for detection of surface imperfections in welds in
ferromagnetic materials, including the heat affected zones, by means of magnetic particle testing. The
techniques are suitable for most welding processes and joint configurations. Variations in the basic
techniques that will provide a higher or lower test sensitivity, are described in Annex A.
This International Standard does not specify acceptance levels of the indications. Further information
on acceptance levels for indications may be found in EN 23278 or in product or application standards.
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.
ISO 3059, Non-destructive testing — Penetrant testing and magnetic particle testing - Viewing conditions
ISO 9934-1, Non-destructive testing — Magnetic particle testing — Part 1: General principle
ISO 9934-2, Non-destructive testing — Magnetic particle testing — Part 2: Detection media
ISO 9934-3, Non-destructive testing — Magnetic particle testing — Part 3: Equipment
ISO 17635, Non-destructive testing of welds — General rules for metallic materials
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17635 apply.
4 Safety precautions
International, national and local safety and environmental protection regulations shall be observed
at all times.
Special consideration shall be given to toxic, inflammable and/or volatile materials, electrical safety and
unfiltered UV radiation.
5 General
5.1 Information required prior to testing
Prior to testing, the following items shall be specified (where applicable):
a) specific test procedure;
b) certification requirements for NDT personnel;
c) extent of coverage;
d) state of manufacture;
© ISO 2015 – All rights reserved 1
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oSIST prEN ISO 17638:2015
ISO/DIS 17638:2015(E)
e) testing techniques to be used;
f) overall performance test;
g) any demagnetization;
h) acceptance level;
i) action necessary for unacceptable indications.
5.2 Additional pre-test information
Prior to testing, the following additional information can also be required:
a) type and designation of the parent and weld materials;
b) welding process;
c) location and extent of welds to be tested;
d) joint preparation and dimensions;
e) location and extent of any repairs;
f) post-weld treatment (if any);
g) surface conditions.
Operators may ask for further information that could be helpful in determining the nature of any
indications detected.
5.3 Personnel qualification
Magnetic particle 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.
5.4 Surface conditions and preparation
Areas to be tested shall be dry unless appropriate products for wet surfaces are used. It may be necessary
to improve the surface condition, e.g., by use of abrasive paper or local grinding to permit accurate
interpretation of indications.
Any cleaning or surface preparation shall not be detrimental to the material, the surface finish or the
magnetic te
...
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