prEN ISO 13920

Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position (ISO/FDIS 13920:2023)

This document specifies general tolerances for linear and angular dimensions and for shape and position of welded structures in four tolerance classes, based on customary workshop accuracy. The main criterion for selection of a particular tolerance class is based on the functional requirements which are to be met.
The applicable tolerances are always those which are stated in the drawing. Instead of specifying individual tolerances the tolerance classes according to this document can be used.
General tolerances for linear and angular dimensions and for shape and position as specified in this document apply for weldments, welding assemblies, welded structures, etc.
Special provisions can be necessary for complex structures.
The specifications given in this document are based on the independency principle of ISO 8015, according to which the dimensional and geometrical tolerances apply independently of each other.
Manufacturing documentation in which linear and angular dimensions or indications for shape and position are presented without individually indicated tolerances shall be deemed incomplete if there is no, or inadequate, reference to general tolerances. This does not apply to temporary dimensions.

Schweißen - Allgemeintoleranzen für Schweißkonstruktionen - Längen- und Winkelmaße - Form und Lage (ISO/FDIS 13920:2023)

Dieses Dokument legt Allgemeintoleranzen für Längen- und Winkelmaße sowie für Form und Lage an Schweiß
konstruktionen in vier Toleranzklassen fest, die auf werkstattüblichen Genauigkeiten basieren. Das
kriterium für die Auswahl einer bestimmten Toleranzklasse sollte sich auf die einzuhaltenden funktionellen Anforderungen beziehen.
Die anzuwendenden Toleranzen/Grenzabmaße sind in jedem Fall diejenigen, die in der Zeichnung angegeben sind. Statt einzelne Toleranzen/Grenzabmaße festzulegen, können die Toleranzklassen nach diesem Dokument angewendet werden.
Allgemeintoleranzen für Längen- und Winkelmaße sowie Form und Lage, wie sie in diesem Dokument festge
legt sind, gelten für Schweißteile, Schweißgruppen, geschweißte Bauteile usw.
Besondere Bedingungen können für komplexe Bauteile notwendig sein.
Die Festlegungen in diesem Dokument basieren auf dem Unabhängigkeitsprinzip, das in ISO8015 festgelegt ist. Danach sind die Maß-Grenzabweichungen und geometrischen Toleranzen unabhängig voneinander anzu
wenden.
Fertigungsunterlagen, die Längen- oder Winkelmaße oder Angaben für Form und Lage ohne einzeln eingetra
gene Toleranzen/Grenzabmaße enthalten, sind als unvollständig anzusehen, wenn sie keinen oder nur einen unvollständigen Bezug auf die Allgemeintoleranzen haben. Dieses ist nicht für zeitweilige Zwischenmaße
wenden.

Soudage - Tolérances générales relatives aux constructions soudées - Dimensions des longueurs et angles - Formes et positions (ISO/FDIS 13920:2023)

Le présent document spécifie quatre classes de tolérances générales relatives aux dimensions linéaires et angulaires ainsi qu'à la forme et à la position des structures soudées, basées sur la précision courante des ateliers. Le principal critère de choix d'une classe de tolérance particulière est fondé sur les exigences fonctionnelles qui doivent être satisfaites.
Les tolérances applicables sont toujours celles qui sont indiquées sur le dessin. Les classes de tolérances mentionnées dans le présent document peuvent être utilisées à la place de tolérances spécifiées individuellement.
Les tolérances générales relatives aux dimensions linéaires et angulaires ainsi qu´à la forme et à la position spécifiées dans le présent document s’appliquent aux constructions soudées, aux assemblages soudés, aux structures soudées, etc.
Des dispositions spéciales peuvent être nécessaires pour les structures complexes.
Les spécifications présentées dans le présent document sont fondées sur le principe d’indépendance de l'ISO 8015, d'après lequel les tolérances dimensionnelles et géométriques s'appliquent indépendamment les unes des autres.
La documentation de fabrication dans laquelle les dimensions linéaires et angulaires ou des indications concernant la forme et la position sont présentées sans que les tolérances soient indiquées individuellement doit être considérée comme incomplète s'il n'est pas fait référence (ou s'il est fait référence de manière inadéquate) aux tolérances générales. Cela ne s'applique pas aux dimensions provisoires.

Varjenje - Splošne tolerance za varjene konstrukcije - Dolžinske in kotne mere - Oblika in položaj (ISO/FDIS 13920:2023)

General Information

• Status: Not Published
• Publication Date: 06-Nov-2023
• ICS: 25.160.01 - Welding, brazing and soldering in general
• Technical Committee: CEN/TC 121 - Welding
• Drafting Committee: CEN/TC 121/SC 4 - Quality management in the field of welding
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Start Date: 02-Jun-2023
• Completion Date: 02-Jun-2023
• Ref Project: oSIST prEN ISO 13920:2023 - Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position (ISO/FDIS 13920:2023)

Relations

• Revises: EN ISO 13920:1996 - Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position (ISO 13920:1996)
• Effective Date: 23-Nov-2022

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 13920:2023
01-april-2023
Varjenje - Splošne tolerance za varjene konstrukcije - Dolžinske in kotne mere -
Oblika in položaj (ISO/FDIS 13920:2023)

Welding - General tolerances for welded constructions - Dimensions for lengths and

angles - Shape and position (ISO/FDIS 13920:2023)

Soudage - Tolérances générales relatives aux constructions soudées - Dimensions des

longueurs et angles - Formes et positions (ISO/FDIS 13920:2023)
Ta slovenski standard je istoveten z: prEN ISO 13920
ICS:
17.040.10 Tolerance in ujemi Limits and fits
25.160.01 Varjenje, trdo in mehko Welding, brazing and
spajkanje na splošno soldering in general
oSIST prEN ISO 13920:2023 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 13920:2023
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oSIST prEN ISO 13920:2023
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 13920
ISO/TC 44/SC 10
Welding — General tolerances for
Secretariat: DIN
welded constructions — Dimensions
Voting begins on:
2023-02-06 for lengths and angles — Shape and
position
Voting terminates on:
2023-05-01
Soudage — Tolérances générales relatives aux constructions soudées
— Dimensions des longueurs et angles — Formes et positions
ISO/CEN PARALLEL PROCESSING
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 13920:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
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oSIST prEN ISO 13920:2023
ISO/FDIS 13920:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 13920
ISO/TC 44/SC 10
Welding — General tolerances for
Secretariat: DIN
welded constructions — Dimensions
Voting begins on:
for lengths and angles — Shape and
position
Voting terminates on:
Soudage — Tolérances générales relatives aux constructions soudées
— Dimensions des longueurs et angles — Formes et positions
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
ISO/CEN PARALLEL PROCESSING

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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 13920:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
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oSIST prEN ISO 13920:2023
ISO/FDIS 13920:2023(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 General tolerances ............................................................................................................................................................................................. 2

4.1 Tolerances for linear dimensions ........................................................................................................................................... 2

4.2 Tolerances for angular dimensions ...................................................................................................................................... 2

4.3 Straightness, flatness and parallelism tolerances .................................................................................................. 3

5 Indications on drawings .............................................................................................................................................................................. 4

6 Testing............................................................................................................................................................................................................................. 4

6.1 General ........................................................................................................................................................................................................... 4

6.2 Straightness .............................................................................................................................................................................................. 5

6.3 Flatness ......................................................................................................................................................................................................... 5

6.4 Parallelism.................................................................................................................................................................................................. 6

7 Non-conformities ................................................................................................................................................................................................. 6

Bibliography ................................................................................................................................................................................................................................ 7

iii
© ISO 2023 – All rights reserved
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oSIST prEN ISO 13920:2023
ISO/FDIS 13920:2023(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

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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

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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

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expressions related to conformity assessment, as well as information about ISO's adherence to

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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 second edition cancels and replaces the first edition (ISO 13920:1996). which has been technically

revised.
The main changes are as follows:
— references have been updated;
— presentation has been updated to the latest ISO styles.
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