EN ISO 5459:2024
(Main)Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum systems (ISO 5459:2024)
Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum systems (ISO 5459:2024)
This document specifies terminology, rules and methodology for the indication and understanding of datums and datum systems in technical product documentation. This document also provides explanations to assist the user in understanding the concepts involved.
This document defines the specification operator (see ISO 17450-2) used to establish a datum or datum system. The verification operator (see ISO 17450-2) can take different forms (physically or mathematically) and is not the subject of this document.
NOTE The detailed rules for maximum and least material requirements for datums are given in ISO 2692.
Geometrische Produktspezifikation (GPS) - Geometrische Tolerierung - Bezüge und Bezugssysteme (ISO 5459:2024)
Dieses Dokument legt die Terminologie, die Regeln und die Methodik zur Angabe und zum Verständnis von Bezügen und Bezugssystemen in technischen Produktdokumentationen fest. Darüber hinaus stellt dieses Dokument Erklärungen zur Verfügung, um den Anwender dabei zu unterstützen, die zugrunde liegenden Konzepte zu verstehen.
Dieses Dokument legt den Spezifikationsoperator (siehe ISO 17450 2) fest, der zur Bildung eines Bezugs oder Bezugssystems verwendet wird. Der Verifikationsoperator (siehe ISO 17450 2) kann unterschiedliche Formen (physikalisch oder mathematisch) annehmen und ist nicht Gegenstand dieses Dokuments.
ANMERKUNG Die ausführlichen Regeln für Maximum und Minimum Material Bedingungen für Bezüge sind in ISO 2692 angegeben.
Spécification géométrique des produits (GPS) - Tolérancement géométrique - Références spécifiées et systèmes de références spécifiées (ISO 5459:2024)
Le présent document spécifie la terminologie, les règles et la méthodologie pour indiquer et comprendre les références spécifiées et les systèmes de références spécifiées dans la documentation technique de produits. Le présent document fournit également des explications aidant l'utilisateur à la compréhension des concepts considérés.
Le présent document définit l'opérateur de spécification (voir l'ISO 17450-2) utilisé pour établir une référence spécifiée ou un système de références spécifiées. L'opérateur de vérification (voir l'ISO 17450-2) peut prendre différentes formes (physique ou mathématique) et ne fait pas l'objet du présent document.
NOTE Les règles détaillées relatives aux exigences du maximum et du minimum de matière pour les références spécifiées sont données dans l'ISO 2692.
Specifikacija geometrijskih veličin izdelka - Geometrijsko toleriranje - Reference in sistemi referenc (ISO 5459:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Specifikacija geometrijskih veličin izdelka - Geometrijsko toleriranje - Reference in
sistemi referenc (ISO 5459:2024)
Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum
systems (ISO 5459:2024)
Geometrische Produktspezifikation (GPS) - Geometrische Tolerierung - Bezüge und
Bezugssysteme (ISO 5459:2024)
Spécification géométrique des produits (GPS) - Tolérancement géométrique -
Références spécifiées et systèmes de références spécifiées (ISO 5459:2024)
Ta slovenski standard je istoveten z: EN ISO 5459:2024
ICS:
17.040.10 Tolerance in ujemi Limits and fits
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 5459
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 17.040.40 Supersedes EN ISO 5459:2011
English Version
Geometrical product specifications (GPS) - Geometrical
tolerancing - Datums and datum systems (ISO 5459:2024)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) -
Tolérancement géométrique - Références spécifiées et Geometrische Tolerierung - Bezüge und
systèmes de références spécifiées (ISO 5459:2024) Bezugssysteme (ISO 5459:2024)
This European Standard was approved by CEN on 27 July 2024.
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5459:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 5459:2024) 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 April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
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 5459:2011.
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 5459:2024 has been approved by CEN as EN ISO 5459:2024 without any modification.
International
Standard
ISO 5459
Third edition
Geometrical product specifications
2024-10
(GPS) — Geometrical tolerancing —
Datums and datum systems
Spécification géométrique des produits (GPS) — Tolérancement
géométrique — Références spécifiées et systèmes de références
spécifiées
Reference number
ISO 5459:2024(en) © ISO 2024
ISO 5459:2024(en)
© ISO 2024
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
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Published in Switzerland
ii
ISO 5459:2024(en)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 5
5 Role of datums . 7
6 General concepts . 9
6.1 General .9
6.2 Intrinsic characteristics of surfaces associated with datum features .10
6.2.1 General .10
6.2.2 Single datum established from a single feature .11
6.2.3 Common datum established from two or more single features simultaneously .11
6.2.4 Datum systems established in a defined sequence from two or more single
features . 13
6.3 Single datums, common datums and datum systems . 13
6.3.1 General . 13
6.3.2 Single datums . 13
6.3.3 Common datums . .14
6.3.4 Datum systems. 15
7 Graphical language .18
7.1 General .18
7.2 Indication of datum features .18
7.2.1 Datum feature indicator .18
7.2.2 Datum feature identifier.19
7.2.3 Datum targets .19
7.3 Specification of datums and datum systems . 23
7.4 Indication and meaning of rules .24
7.4.1 General .24
7.4.2 Rules .24
8 Specification operators for datum .47
8.1 ISO default specification operator for datum .47
8.2 Special specification operator for datum .47
8.2.1 General .47
8.2.2 Filtration specification elements for datum . 48
8.2.3 Association specification elements for datum . 49
8.3 Drawing-default specification operator for datums . 50
Annex A (normative) Association for datums . .51
Annex B (informative) Invariance classes . 61
Annex C (informative) Examples .63
Annex D (informative) Former practices .86
Annex E (informative) Examples of a datum system or a common datum established with
contacting features .90
Annex F (normative) Relations and dimensions of graphical symbols .96
Annex G
...
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