EN ISO 17639:2013

SLOVENSKI STANDARD
01-december-2013
1DGRPHãþD
SIST EN 1321:1998
Porušitveni preskusi zvarov na kovinskih materialih - Makroskopska in
mikroskopska preiskava zvarov (ISO 17639:2003)
Destructive tests on welds in metallic materials - Macroscopic and microscopic
examination of welds (ISO 17639:2003)
Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen -
Makroskopische und mikroskopische Untersuchungen von Schweißnähten (ISO
17639:2003)
Essais destructifs des soudures sur matériaux métalliques - Examens macroscopique et
microscopique des assemblages soudés (ISO 17639:2003)
Ta slovenski standard je istoveten z: EN ISO 17639:2013
ICS:
25.160.40 Varjeni spoji in vari Welded joints
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 17639
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2013
ICS 25.160.40 Supersedes EN 1321:1996
English Version
Destructive tests on welds in metallic materials - Macroscopic
and microscopic examination of welds (ISO 17639:2003)
Essais destructifs des soudures sur matériaux métalliques - Zerstörende Prüfung von Schweißverbindungen an
Examens macroscopique et microscopique des metallischen Werkstoffen - Makroskopische und
assemblages soudés (ISO 17639:2003) mikroskopische Untersuchungen von Schweißnähten (ISO
17639:2003)
This European Standard was approved by CEN on 8 August 2013.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17639:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO 17639:2003 has been prepared by Technical Committee ISO/TC 44 “Welding and allied
processes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO
17639:2013 by 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 February 2014, and conflicting national standards shall be withdrawn
at the latest by February 2014.
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 1321:1996.
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 17639:2003 has been approved by CEN as EN ISO 17639:2013 without any modification.
INTERNATIONAL ISO
STANDARD 17639
First edition
2003-09-01
Destructive tests on welds in metallic
materials — Macroscopic and
microscopic examination of welds
Essais destructifs des soudures sur matériaux métalliques — Examens
macroscopique et microscopique des assemblages soudés

Reference number
ISO 17639:2003(E)
©
ISO 2003
ISO 17639:2003(E)
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ii © ISO 2003 — All rights reserved

ISO 17639:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Abbreviations . 2
5 Principle . 2
6 Purpose of the test. 2
7 Removal of test specimens. 2
8 Test procedure . 4
8.1 General. 4
8.2 Test specimen preparation . 4
8.3 Surface finish . 4
8.4 Etching methods . 4
8.5 Etchants . 5
8.6 Safety measures. 5
9 Examination. 5
10 Designation. 5
11 Test report. 8
Annex A (informative) Example of a test report . 9

ISO 17639:2003(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.
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 17639 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 5, Testing and inspection of welds.
Requests for official interpretation of any aspect of this International Standard should be directed to the
Secretariat of ISO/TC 44/SC 5 via the member body in the user's country, a complete listing of which can be
found at www.iso.org.
iv © ISO 2003 — All rights reserved

INTERNATIONAL STANDARD ISO 17639:2003(E)

Destructive tests on welds in metallic materials — Macroscopic
and microscopic examination of welds
1 Scope
This International Standard gives recommendations for specimen preparation, test procedures and their main
objectives for macroscopic and microscopic examination.
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 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic materials —
Part 1: Fusion welding
ISO 9956-3, Specification and approval of welding procedures for metallic materials — Part 3: Welding
procedure tests for arc welding of steels
ISO 9956-4, Specification and approval of welding procedures for metallic materials — Part 4: Welding
procedure tests for the arc welding of aluminium and its alloys
ISO/TR 15608, Welding — Guidelines for a metallic materials grouping system
ISO/TR 16060, Destructive tests on welds in metallic materials — Etchants for macroscopic and microscopic
examination
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
macroscopic examination
examination of a test specimen by the naked eye, or under low magnification (generally less than × 50), with
or without etching
3.2
microscopic examination
examination of a test specimen by microscope with a magnification of generally × 50 to × 500, with or without
etching
3.3
operator
person who performs the macroscopic and/or microscopic examination
ISO 17639:2003(E)
4 Abbreviations
For the purposes of this document, the following abbreviations apply.
A Macroscopic examination
I Microscopic examination
E Etched
U Unetched
Abbreviations for parent metals shall be in accordance with the grouping systems in ISO 9956-3 for steels and
ISO 9956-4 for aluminium and its alloys.
Grouping systems for other materials are given in ISO/TR 15608.
The same grouping systems shall also be used for weld metal.
The abbreviations for etchants should be taken from ISO/TR 16060 whenever applicable.
NOTE A trade mark can be used if ISO/TR 16060 is not applicable.
5 Principle
Macroscopic and microscopic examination is used to reveal the macroscopic or microscopic features of a
welded joint, usually by the examination of transverse sections.
This is done by visual and/or optical examination of the prepared surface, before or after etching.
6 Purpose of the test
The purpose of macroscopic and microscopic examinations is to assess the structure (including grain
structure, morphology and orientation, precipitates and inclusions) independently and/or in relation to various
cra
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