EN ISO 3834-2:2021

SLOVENSKI STANDARD
01-junij-2021
Nadomešča:
SIST EN ISO 3834-2:2006
Zahteve za kakovost pri talilnem varjenju kovinskih materialov - 2. del: Obširnejše
zahteve za kakovost (ISO 3834-2:2021)
Quality requirements for fusion welding of metallic materials - Part 2: Comprehensive
quality requirements (ISO 3834-2:2021)
Qualitätsanforderungen für das Schmelzschweißen von metallischen Werkstoffen - Teil
2: Umfassende Qualitätsanforderungen (ISO 3834-2:2021)
Exigences de qualité en soudage par fusion des matériaux métalliques - Partie 2:
Exigences de qualité complète (ISO 3834-2:2021)
Ta slovenski standard je istoveten z: EN ISO 3834-2:2021
ICS:
03.120.99 Drugi standardi v zvezi s Other standards related to
kakovostjo quality
25.160.10 Varilni postopki in varjenje Welding processes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 3834-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 25.160.01 Supersedes EN ISO 3834-2:2005
English Version
Quality requirements for fusion welding of metallic
materials - Part 2: Comprehensive quality requirements
(ISO 3834-2:2021)
Exigences de qualité en soudage par fusion des Qualitätsanforderungen für das Schmelzschweißen von
matériaux métalliques - Partie 2: Exigences de qualité metallischen Werkstoffen - Teil 2: Umfassende
complète (ISO 3834-2:2021) Qualitätsanforderungen (ISO 3834-2:2021)
This European Standard was approved by CEN on 10 April 2021.

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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3834-2:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3834-2:2021) 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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 3834-2:2005.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 3834-2:2021 has been approved by CEN as EN ISO 3834-2:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 3834-2
Third edition
2021-04
Quality requirements for fusion
welding of metallic materials —
Part 2:
Comprehensive quality requirements
Exigences de qualité en soudage par fusion des matériaux
métalliques —
Partie 2: Exigences de qualité complète
Reference number
ISO 3834-2:2021(E)
©
ISO 2021
ISO 3834-2:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 3834-2:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Use of this document . 1
5 Review of requirements and technical review . 2
5.1 General . 2
5.2 Review of requirements . 2
5.3 Technical review . 2
6 Sub-contracting . 3
7 Welding personnel. 3
7.1 General . 3
7.2 Welders and welding operators . 3
7.3 Welding coordination personnel . 3
8 Inspection and testing personnel . 4
8.1 General . 4
8.2 Non-destructive testing personnel . 4
9 Equipment . 4
9.1 Production and test equipment . 4
9.2 Description of production equipment . 5
9.3 Suitability of equipment . 5
9.4 New equipment . 5
9.5 Maintenance of equipment . 5
10 Welding and related activities . 5
10.1 Production planning . 5
10.2 Welding procedure specifications . 6
10.3 Qualification of the welding procedures . 6
10.4 Work instructions . 6
10.5 Procedures for preparation and control of documents . 6
11 Welding consumables. 7
11.1 General . 7
11.2 Batch testing . 7
11.3 Storage and handling . 7
12 Storage of parent materials . 7
13 Post-weld heat treatment . 7
14 Inspection and testing . 7
14.1 General . 7
14.2 Inspection and testing before welding . 7
14.3 Inspection and testing during welding . 8
14.4 Inspection and testing after welding . 8
14.5 Inspection and test status . 8
15 Non-conformance and corrective actions . 9
16 Calibration and validation of measuring, inspection and test equipment .9
17 Identification and traceability . 9
18 Quality records .10
Bibliography .11
ISO 3834-2:2021(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 of the voluntary nature of standards, 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 www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 10, Quality management in the field of welding, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 121, Welding and allied processes,
in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 3834-2:2005), of which it constitutes a
minor revision.
The main changes compared to the previous edition are as follows:
— editorial revisions;
— update of references to the latest edition of ISO 3834-5;
— rewrite of Clause 16 on calibration and validation of measuring, inspection and test equipment.
A list of all parts in the ISO 3834 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
Official interpretations, where they exist, are available from this page: https:// committee .iso .org/ sites/
tc44/ home/ interpretation .html.
iv © ISO 2021 – All rights reserved

INTERNATIONAL STANDARD ISO 3834-2:2021(E)
Quality requirements for fusion welding of metallic
materials —
Part 2:
Comprehensive quality requirements
1 Scope
This document defines comprehensive quality requirements for fusion welding of metallic materials
both in workshops and at field installation sites.
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 3834-1, Quality requirements for fusion welding of metallic materials — Part 1: Criteria for the selection
of the appropriate level of quality requirements
1)
ISO 3834-5:—, Quality requirements for fusion welding of metallic materials — Part 5: Documents with
which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO 3834-3
or ISO 3834-4
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3834-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Use of this document
For general information on the use of this document, ISO 3834-1 shall be used.
In order to fulfil the quality requirements given in this document, the conformity to relevant documents
given in ISO 3834-5 shall be verified.
In certain situations, e.g. where manufacturing is more suited to ISO 3834-3 or ISO 3834-4, or where
particular operations, such as heat treatment, are not undertaken, the requirements detailed in this
document may be selectively amended or deleted.
Otherwise, the requirements contained within this document shall be adopted in full.
1) Under preparation. (Stage at the time of publi
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