SIST EN ISO 9606-1:2013

Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012)

This part of ISO 9606 specifies the requirements for qualification testing of welders for fusion welding of steels. It provides a set of technical rules for a systematic qualification test of the welder, and enables such qualifications to be uniformly accepted independently of the type of product, location and examiner or examining body. When qualifying welders, the emphasis is placed on the welder's ability manually to manipulate the electrode, welding torch or welding blowpipe, thereby producing a weld of acceptable quality. The welding processes referred to in this part of ISO 9606 include those fusion-welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized and automated welding processes.

Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle (ISO 9606-1:2012 + Cor 1:2012)

Der vorliegende Teil der ISO 9606 legt die Anforderungen an die Schweißerprüfung für das Schmelz-schweißen von Stählen fest.
Er stellt eine Reihe technischer Regeln für eine systematische Prüfung von Schweißern auf und ermöglicht so, dass solche Qualifikationen unabhängig von der Art des Erzeugnisses, des Ortes und des Prüfers/der Prüfstelle einheitlich akzeptiert werden.
Wenn Schweißer qualifiziert werden, liegt der Schwerpunkt auf der Fähigkeit des Schweißers, den Elektrodenhalter/die Schweißpistole/den Schweißbrenner so zu handhaben, dass damit eine Schweißung von zulässiger Qualität erzeugt wird.
Die Schweißprozesse nach diesem Teil der ISO 9606 schließen nur solche Schmelzschweißprozesse ein, die als Handschweißen oder teilmechanisches Schweißen bezeichnet werden. Sie schließen keine voll-mechanischen und automatischen Schweißprozesse ein.
ANMERKUNG   Für derartige Verfahren siehe ISO 14732 [10].

Épreuve de qualification des soudeurs - Soudage par fusion - Partie 1: Aciers (ISO 9606-1:2012, Cor 1:2012 et Cor 2:2013 inclus)

L'ISO 9606-1:2012 définit les exigences relatives à l'épreuve de qualification des soudeurs pour le soudage par fusion des aciers.
Elle fournit un ensemble de règles techniques pour l'épreuve de qualification systématique des soudeurs et permet à de telles qualifications d'être acceptées uniformément, indépendamment du type de produit, du lieu et de l'examinateur ou de l'organisme d'examen.
Lors de la qualification des soudeurs, l'accent est porté sur l'aptitude du soudeur à guider manuellement l'électrode, la torche ou le chalumeau de soudage afin de produire une soudure de qualité acceptable.
Les procédés de soudage concernés par l'ISO 9606-1:2012 sont les procédés de soudage par fusion désignés comme manuels ou semi-automatiques. L'ISO 9606-1:2012 n'est pas applicable aux procédés de soudage totalement mécanisés et automatisés.

Preskušanje usposobljenosti varilcev - Talilno varjenje - 1. del: Jekla (ISO 9606-1:2012, vključuje tudi Cor 1:2012)

Ta del standarda ISO 9606 določa zahteve za preskušanje usposobljenosti varilcev pri talilnem varjenju jekel. Podaja niz tehničnih pravil za sistematično preskušanje usposobljenosti varilcev in omogoča, da so taka usposabljanja povsod priznana, ne glede na vrsto izdelka, lokacijo in preizkuševalca oz. komisijo. Pri usposabljanju varilcev je največ poudarka na sposobnosti varilca, da ročno upravlja elektrode, plamena ali gorilnike za varjenje, da proizvede zvar sprejemljive kakovosti. Postopki varjenja, ki so navedeni v tem delu standarda ISO 9606, vključujejo tiste postopke talilnega varjenja, ki so zasnovani za ročno ali delno mehanizirano varjenje. Popolnoma mehaniziranih in avtomatiziranih postopkov varjenja ne obravnava v celoti.

General Information

• Status: Withdrawn
• Publication Date: 11-Nov-2013
• Withdrawal Date: 13-Sep-2018
• ICS: 03.100.30 - Management of human resources
• ICS: 25.160.10 - Welding processes
• ICS: 77.080.20 - Steels
• Technical Committee: VAR - Welding
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 08-Jan-2018
• Due Date: 31-Jan-2018
• Completion Date: 14-Sep-2018
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN ISO 9606-1:2013 - Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012)

Relations

• Replaces: SIST EN 287-1:2011 - Qualification test of welders - Fusion welding - Part 1: Steels
• Effective Date: 01-Dec-2013
• Replaced By: SIST EN ISO 9606-1:2018 - Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
• Effective Date: 01-Oct-2018
• Replaces: SIST EN 287-1:2011 - Qualification test of welders - Fusion welding - Part 1: Steels
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 9606-1:2013
01-december-2013
1DGRPHãþD
SIST EN 287-1:2011
3UHVNXãDQMHXVSRVREOMHQRVWLYDULOFHY7DOLOQRYDUMHQMHGHO-HNOD,62
YNOMXþXMHWXGL&RU
Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012
including Cor 1:2012)
Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle (ISO 9606-1:2012 + Cor
1:2012)
Épreuve de qualification des soudeurs - Soudage par fusion - Partie 1: Aciers (ISO 9606-
1:2012, Cor 1:2012 et Cor 2:2013 inclus)
Ta slovenski standard je istoveten z: EN ISO 9606-1:2013
ICS:
03.100.30 Vodenje ljudi Management of human
resources
25.160.10 Varilni postopki in varjenje Welding processes
77.080.20 Jekla Steels
SIST EN ISO 9606-1:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 9606-1:2013

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SIST EN ISO 9606-1:2013


EUROPEAN STANDARD
EN ISO 9606-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2013
ICS 03.100.30; 25.160.10 Supersedes EN 287-1:2011
English Version
Qualification testing of welders - Fusion welding - Part 1: Steels
(ISO 9606-1:2012 including Cor 1:2012)
Épreuve de qualification des soudeurs - Soudage par Prüfung von Schweißern - Schmelzschweißen - Teil 1:
fusion - Partie 1: Aciers (ISO 9606-1:2012, Cor 1:2012 et Stähle (ISO 9606-1:2012 + Cor 1:2012)
Cor 2:2013 inclus)
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

CEN-CENELEC 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 9606-1:2013: E
worldwide for CEN national Members.

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SIST EN ISO 9606-1:2013
EN ISO 9606-1:2013 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC .4

2

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SIST EN ISO 9606-1:2013
EN ISO 9606-1:2013 (E)
Foreword
The text of ISO 9606-1:2012 including Cor 1:2012 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 9606-1:2013 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 April 2014, and conflicting national standards shall be withdrawn at the
latest by October 2015.
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 287-1:2011.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
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 9606-1:2012 including Cor 1:2012 has been approved by CEN as EN ISO 9606-1:2013
without any modification.
3

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SIST EN ISO 9606-1:2013
EN ISO 9606-1:2013 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide a means of conforming to Essential Requirements of the
New Approach Directive 97/23/EC.
Once this standard is cited in the Official Journal of the European Union under that Directive and has been
implemented as a national standard in at least one Member State, compliance with the clauses of this
standard given in table ZA.1 confers, within the limits of the scope of this standard, a presumption of
conformity with the corresponding Essential Requirements of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC

Clause(s)/sub-clause(s) of this Essential Requirements (ERs) Qualifying remarks/Notes
EN of Directive 97/23/EC

Clauses 5, 6, 7, 8, 9, 10, 11 Annex I, 3.1.2 Permanant joining


WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling within
the scope of this standard.
4

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SIST EN ISO 9606-1:2013

INTERNATIONAL ISO
STANDARD 9606-1
Second edition
2012-07-15


Qualification testing of welders — Fusion
welding —
Part 1:
Steels
Épreuve de qualification des soudeurs — Soudage par fusion
Partie 1: Aciers




Reference number
ISO 9606-1:2012(E)
©
ISO 2012

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing 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 [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2012 – All rights reserved

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
Contents Page
Foreword . iv
Introduction . v
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 2
4  Reference numbers, symbols and abbreviated terms . 4
4.1  General . 4
4.2  Reference numbers of welding processes . 4
4.3  Symbols and abbreviated terms . 4
5  Essential variables and range of qualification . 6
5.1  General . 6
5.2  Welding processes . 7
5.3  Product type . 8
5.4  Type of weld . 9
5.5  Filler material grouping . 9
5.6  Filler material type . 10
5.7  Dimensions . 11
5.8  Welding positions . 13
5.9  Weld details . 15
6  Examination and testing . 15
6.1  Examination . 15
6.2  Test pieces . 16
6.3  Welding conditions . 18
6.4  Test methods . 18
6.5  Test piece and test specimen . 19
6.6  Test report . 23
7  Acceptance requirements for test pieces . 23
8  Re-tests. 24
9  Period of validity . 24
9.1  Initial qualification . 24
9.2  Confirmation of the validity . 24
9.3  Revalidation of welder qualification . 24
9.4  Revocation of qualification . 24
10  Welder's qualification test certificate . 25
11  Designation . 25
Annex A (informative) Welder's qualification test certificate . 27
Annex B (informative) Job knowledge . 28
Annex C (informative) FW/BW test assembly option . 31
Bibliography . 32

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(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 9606-1 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 11, Qualification requirements for welding and allied processes personnel.
This second edition cancels and replaces the first edition (ISO 9606-1:1994), which has been technically
revised. It also incorporates the Amendment ISO 9606-1:1994/Amd.1:1998.
ISO 9606 consists of the following parts, under the general title Qualification testing of welders — Fusion
welding:
 Part 1: Steels
 Part 2: Aluminium and aluminium alloys
 Part 3: Copper and copper alloys
 Part 4: Nickel and nickel alloys
 Part 5: Titanium and titanium alloys, zirconium and zirconium alloys
Requests for official interpretations of any aspect of this part of ISO 9606 should be directed to the Secretariat
of ISO/TC 44/SC 11 via your national standards body. A complete listing of these bodies can be found
at www.iso.org.
iv © ISO 2012 – All rights reserved

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
Introduction
The ability of a welder to follow verbal or written instructions and verification of a person's skills are important
factors in ensuring the quality of the welded product.
The testing of a welder's skill in accordance with this International Standard depends on the welding
techniques and conditions used, in which uniform rules are complied with and standard test pieces are used.
The principle of this International Standard is that a qualification test qualifies a welder not only for the
conditions used in the test, but also for all other conditions which are considered easier to weld in accordance
with this International Standard. It is presumed that the welder has received training and/or has industrial
practice within the range of qualification.
The qualification test can be used to qualify a welding procedure and a welder provided that all the relevant
[11]
requirements, e.g. test piece dimensions and testing requirements are satisfied (see ISO 15614-1 ).
All new qualifications shall be in accordance with each part of this International Standard from its date of issue.
At the end of its period of validity, existing qualification tests of welders in accordance with the requirement of
a national standard may be revalidated according to this International Standard. This is providing that the
technical intent of this International Standard is satisfied. It is necessary for the new range of qualification to
be interpreted in accordance with the requirements of this International Standard.
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SIST EN ISO 9606-1:2013

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SIST EN ISO 9606-1:2013
INTERNATIONAL STANDARD ISO 9606-1:2012(E)

Qualification testing of welders — Fusion welding —
Part 1:
Steels
1 Scope
This part of ISO 9606 specifies the requirements for qualification testing of welders for fusion welding of steels.
It provides a set of technical rules for a systematic qualification test of the welder, and enables such
qualifications to be uniformly accepted independently of the type of product, location and examiner or
examining body.
When qualifying welders, the emphasis is placed on the welder's ability manually to manipulate the electrode,
welding torch or welding blowpipe, thereby producing a weld of acceptable quality.
The welding processes referred to in this part of ISO 9606 include those fusion-welding processes which are
designated as manual or partly mechanized welding. It does not cover fully mechanized and automated
welding processes.
[10]
NOTE For such processes, see ISO 14732 .
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 857-1, Welding and allied processes — Vocabulary — Part 1: Metal welding processes
ISO 3834-2, Quality requirements for fusion welding of metallic materials — Part 2: Comprehensive quality
requirements
ISO 3834-3, Quality requirements for fusion welding of metallic materials — Part 3: Standard quality
requirements
ISO 4063, Welding and allied processes — Nomenclature of processes and reference numbers
ISO 5173, Destructive tests on welds in metallic materials — Bend tests
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 6947, Welding and allied processes — Welding positions
ISO 9017, Destructive tests on welds in metallic materials — Fracture test
ISO/TR 15608, Welding — Guidelines for a metallic material grouping system
ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 1: Arc welding
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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
ISO 15609-2, Specification and qualification of welding procedures for metallic materials — Welding
procedure specification — Part 2: Gas welding
ISO 17636 (all parts), Non-destructive testing of welds — Radiographic testing
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO/TR 25901:2007, Welding and related processes — Vocabulary
3 Terms and definitions
For the purposes of this part of ISO 9606, the following terms and definitions apply.
3.1
welder
person who holds and manipulates the electrode holder, welding torch or blowpipe by hand
[ISO/TR 25901:2007, 2.428]
3.2
manufacturer
person or organization responsible for the welding production
[12]
[ISO 15607:2003, 3.23]
3.3
examiner
person appointed to verify compliance with the applicable standard
NOTE In certain cases, an external independent examiner can be required.
[ISO/TR 25901:2007, 2.119]
3.4
examining body
organization appointed to verify compliance with the applicable standard
NOTE In certain cases, an external independent examining body can be required.
[ISO/TR 25901:2007, 2.120]
3.5
material backing
backing using material for the purpose of supporting molten weld metal
3.6
gas backing
backing using gas primarily for the purpose of preventing oxidation
3.7
flux backing
backing using flux primarily for the purpose of preventing oxidation
NOTE In submerged arc welding, flux backing may also reduce the risk of a weld pool collapse.
3.8
consumable insert
filler material that is placed at the root of the joint before welding to be completely fused into the root
2 © ISO 2012 – All rights reserved

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
3.9
layer
stratum of weld metal consisting of one or more runs
[ISO/TR 25901:2007, 2.209]
3.10
root run
root pass
multi-layer welding run(s) of the first layer deposited in the root
[ISO/TR 25901:2007, 2.310]
3.11
filling run
multi-layer welding run(s) deposited after the root run(s) and before the capping run(s)
[ISO/TR 25901:2007, 2.132]
3.12
capping run
multi-layer welding run(s) visible on the weld face(s) after completion of welding
[ISO/TR 25901:2007, 2.57]
3.13
deposited thickness
thickness of the weld metal excluding any reinforcement
3.14
leftward welding
gas welding technique in which the filler rod is moved ahead of the blowpipe in relation to the welding direction
[ISO/TR 25901:2007, 2.210]
3.15
rightward welding
gas welding technique in which the filler rod is moved behind the blowpipe in relation to the welding direction
[ISO/TR 25901:2007, 2.302]
3.16
branch joint
joint of one or more tubular parts to the main pipe or to a shell
3.17
fillet weld
triangular weld in a square preparation for making a T-joint, corner joint or lap joint
[ISO/TR 25901:2007, 2.131]
3.18
verification
confirmation, through the provision of objective evidence, that specified requirements have been fulfilled
[5]
[ISO 9000:2005, 3.8.4]
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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
4 Reference numbers, symbols and abbreviated terms
4.1 General
The following abbreviations and reference numbers shall be used when completing the welder's qualification
test certificate (see Annex A).
4.2 Reference numbers of welding processes
This part of ISO 9606 covers the following manual or partly mechanized welding processes (reference
numbers of welding processes for symbolic representations are listed in ISO 4063):
111 manual metal arc welding
114 self-shielded tubular cored arc welding
121 submerged arc welding with solid wire electrode (partly mechanized)
125 submerged arc welding with tubular cored electrode (partly mechanized)
131 MIG welding with solid wire electrode
135 MAG welding with solid wire electrode
136 MAG welding with flux cored electrode
138 MAG welding with metal cored electrode
141 TIG welding with solid filler material (wire/rod)
142 autogenous TIG welding
143 TIG welding with tubular cored filler material (wire/rod)
145 TIG welding using reducing gas and solid filler material (wire/rod)
15 plasma arc welding
311 oxyacetylene welding
See ISO/TR 25901 and ISO 857-1 for the definition of manual and partly mechanized welding.
NOTE The principles of this part of ISO 9606 can be applied to other fusion welding processes.
4.3 Symbols and abbreviated terms
4.3.1 For test pieces
a design throat thickness
BW butt weld
D outside pipe diameter
FW fillet weld
l length of test piece
1
l half-width of test piece
2
l examination length
f
P plate
s deposited thickness or fused metal thickness in butt welds
t material thickness of test piece (plate or wall thickness)
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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
s deposited thickness of test piece for welding process 1
1
s deposited thickness of test piece for welding process 2
2
1)
T
pipe
z leg length of fillet weld
4.3.2 For filler materials
nm no filler material
The symbol for type of covering or core is based on those given in various International Standards on filler
materials.
03 rutile basic covering
10 cellulosic covering
11 cellulosic covering
12 rutile covering
13 rutile covering
14 rutile + iron powder covering
15 basic covering
16 basic covering
18 basic + iron powder covering
19 limenite covering
20 iron oxide covering
24 rutile + iron powder covering
27 iron oxide + iron powder covering
28 basic + iron powder covering
45 basic covering
48 basic covering

A acid covering
B basic covering or electrode core — basic
C cellulosic covering
R rutile covering or electrode core — rutile, slow-freezing slag
RA rutile — acid covering
RB rutile — basic covering
RC rutile — cellulosic covering
RR rutile — thick covering


1) The word “pipe”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section”.
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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
M metal cored electrode or metal powder
P electrode core — rutile, fast-freezing slag
S solid wire electrode — solid rod
V electrode core — rutile or basic/fluoride
W electrode core — basic/fluoride, slow-freezing slag
Y electrode core — basic/fluoride, fast-freezing slag
Z electrode core — other types
4.3.3 For other weld details
fb flux backing
bs welding from both sides
ci consumable insert
lw leftward welding
mb material backing
gb gas backing
ml multi-layer
nb welding with no material backing
rw rightward welding
sl single layer
ss single side welding
4.3.4 For bend tests
A minimum tensile elongation after fracture required by the material specification
d diameter of the former or the inner roller
t thickness of the bend test specimen
s
4.3.5 Types of arc welding
MAG metal active gas
MIG metal inert gas
TIG tungsten inert gas
5 Essential variables and range of qualification
5.1 General
The qualification of welders is based on essential variables. For each essential variable, a range of
qualification is defined. If the welder has to weld outside the range of welder qualification, a new qualification
test is required. The essential variables are:
 welding process(es);
 product type (plate or pipe);
6 © ISO 2012 – All rights reserved

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
 type of weld (butt or fillet);
 filler material group;
 filler material type;
 dimension (material thickness and outside pipe diameter);
 welding position;
 weld detail(s) (material backing, gas backing, flux backing, consumable insert, single side welding, both
side welding, single layer, multi-layer, leftward welding, rightward welding).
The parent material group(s) and subgroup(s), in accordance with ISO/TR 15608, that are used in the test
shall be recorded on the welder's qualification test certificate.
5.2 Welding processes
Welding processes are defined in ISO 857-1 and listed in 4.2.
Each test normally qualifies only one welding process. A change of welding process requires a new
qualification test.
Exceptions are as follows:
 a change from solid wire electrode 135 to a metal cored electrode 138, or vice versa, does not require
requalification (see Table 5);
 a change from solid wire electrode 121 to a tubular cored electrode 125, or vice versa, does not require
requalification (see Table 5);
 welding with 141, 143 or 145 qualifies for 141, 142, 143 and 145, but 142 only qualifies for 142;
 qualifying the welder for dip (short-circuit) transfer mode (131, 135 and 138) shall qualify him for other
transfer modes, but not vice versa.
However, it is permitted for a welder to be qualified for two or more welding processes by welding a single test
piece (multi-process joint) or by two or more separate qualification tests. The ranges of qualification
concerning the deposited thickness for each welding process used and for the multi-process joint for butt
welds are given in Tables 1 and 6.
© ISO 2012 – All rights reserved 7

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SIST EN ISO 9606-1:2013
ISO 9606-1:2012(E)
Table 1 — Deposited thickness range of w
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