EN ISO 4351:2023
(Main)Geometrical product specifications (GPS) - Association (ISO 4351:2023)
Geometrical product specifications (GPS) - Association (ISO 4351:2023)
This document gives the terminology and basic concepts of association, including objective functions and association constraints and material offset.
This document is not intended to specify association defaults and GPS syntax which are introduced in other (ISO GPS) International Standards.
NOTE The association can be used to establish for example:
— a datum;
— a reference feature for a geometrical specification or for a surface texture specification;
— an associated toleranced feature;
— any dimensional characteristic;
— an intersection plane, an orientation plane, a collection plane or a direction feature.
Geometrische Produktspezifikationen (GPS) - Assoziation (ISO 4351:2023)
Dieses Dokument stellt die Terminologie und die grundlegenden Konzepte der Assoziation auf, einschließlich Zielfunktionen, Nebenbedingungen der Assoziation und Materialversatz.
Dieses Dokument ist nicht dafür vorgesehen, GPS-Syntax und Defaults für die Assoziation festzulegen; diese werden in anderen Internationalen (ISO GPS-)Normen eingeführt.
ANMERKUNG Die Assoziation kann verwendet werden beispielsweise zur Bestimmung:
- eines Bezugs;
- eines Referenzgeometrieelements für eine geometrische Spezifikation oder für eine Spezifikation der Oberflächenbeschaffenheit;
- eines assoziierten tolerierten Geometrieelements;
- aller maßlichen Merkmale;
- einer Schnittebene, einer Orientierungsebene, einer Kollektionsebene oder eines Richtungselements.
Spécification géométrique des produits (GPS) - Association (ISO 4351:2023)
Le présent document fournit la terminologie et les concepts de base de l’association, incluant les fonctions objectifs et les contraintes d’association, ainsi que l’offset matière.
Le présent document n’est pas destiné à spécifier les paramètres par défaut des associations et la syntaxe GPS, qui sont introduits dans d’autres normes internationales (ISO GPS).
NOTE L’association peut être utilisée pour établir par exemple:
— une référence spécifiée;
— un élément d'évaluation pour une spécification géométrique ou pour une spécification d’état de surface;
— un élément tolérancé associé;
— toute caractéristique dimensionnelle;
— un plan d’intersection, un plan d’orientation, un plan de collection ou un élément de direction.
Specifikacija geometrijskih veličin izdelka (GPS) - Povezave (ISO 4351:2023)
Ta dokument določa terminologijo in osnovne pojme za povezave, med njimi osnovne geometrijske operacije, kot so filtracija, ekstrakcija, delitev, konstrukcija, rekonstrukcija ali zbiranje.
OPOMBA: Povezava se lahko na primer uporabi za določitev podatka, določitev referenčnega elementa geometrijske specifikacije ali specifikacije teksture površine, za določitev dimenzijske lastnosti, določitev presečne ravnine, orientacijske ravnine, zbirne ravnine, smernega elementa.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2024
Specifikacija geometrijskih veličin izdelka (GPS) - Povezave (ISO 4351:2023)
Geometrical product specifications (GPS) - Association (ISO 4351:2023)
Geometrische Produktspezifikationen (GPS) - Assoziation (ISO 4351:2023)
Spécification géométrique des produits (GPS) - Association (ISO 4351:2023)
Ta slovenski standard je istoveten z: EN ISO 4351:2023
ICS:
17.040.40 Specifikacija geometrijskih Geometrical Product
veličin izdelka (GPS) Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4351
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2023
EUROPÄISCHE NORM
ICS 17.040.40
English Version
Geometrical product specifications (GPS) - Association
(ISO 4351:2023)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikationen (GPS) -
Association (ISO 4351:2023) Assoziation (ISO 4351:2023)
This European Standard was approved by CEN on 18 October 2023.
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4351:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4351:2023) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the
secretariat of which is held by AFNOR.
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 June 2024, and conflicting national standards shall be
withdrawn at the latest by June 2024.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4351:2023 has been approved by CEN as EN ISO 4351:2023 without any modification.
INTERNATIONAL ISO
STANDARD 4351
First edition
2023-12
Geometrical product specifications
(GPS) — Association
Spécification géométrique des produits (GPS) — Association
Reference number
ISO 4351:2023(E)
ISO 4351:2023(E)
© ISO 2023
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 4351:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Association specification elements description of association process.3
5 Association criterion . 4
5.1 General . 4
5.2 Objective function description . 5
5.3 Association constraint . 6
5.4 Material offset . 7
6 Specification elements . 7
Annex A (informative) Non-enclosing feature/enclosing feature — Definitions .11
Annex B (informative) Illustration of results of association .13
Annex C (informative) Relationship to the ISO GPS matrix model .15
Bibliography .16
iii
ISO 4351:2023(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
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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
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 213, Dimensional and geometrical product
specifications and verification, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 290, Dimensional and geometrical product specification and verification, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
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.
iv
ISO 4351:2023(E)
Introduction
This document is a geometrical product specifications (GPS) standard and is to be regarded as a
general ISO GPS standard (see ISO 14638). It influences the chain links A, B, C, E, F and G in all chains of
standards in the general ISO GPS matrix.
The ISO GPS matrix plan given in ISO 14638 gives an overview of the ISO GPS system of which this
document is a part. The fundamental rules of ISO GPS given in ISO 8015 apply to this document and
the default decision rules given in ISO 14253-1 apply to the specifications made in accordance with this
document, unless otherwise indicated.
For more detailed information on the relationship of this document to other International Standards
and to the ISO GPS matrix model, see Annex C.
v
INTERNATIONAL STANDARD ISO 4351:2023(E)
Geometrical product specifications (GPS) — Association
1 Scope
This document gives the terminology and basic concepts of association, including objective functions
and association constraints and material offset.
This document is not intended to specify association defaults and GPS syntax which are introduced in
other (ISO GPS) International Standards.
NOTE The association can be used to establish for example:
— a datum;
— a reference feature for a geometrical specification or for a surface texture specification;
— an associated toleranced feature;
— any dimensional characteristic;
— an intersection plane, an orientation plane, a collection plane or a direction feature.
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 17450-1, Geometrical product specifications (GPS) — General concepts — Part 1: Model for geometrical
specification and verification
ISO 17450-4, Geometrical product specifications (GPS) — Basic concepts — Part 4: Geometrical
characteristics for quantifying GPS deviations
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17450-1 and ISO 17450-4 and
the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
association
feature operation used to fit one or more ideal features to one or more input features (3.2) according to
an association criterion
Note 1 to entry: The definition has been adapted from the definition of ISO 17450-1, to consider the term input
feature.
3.2
input
...
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