EN ISO 18183-3:2024

SLOVENSKI STANDARD
01-april-2024
Specifikacija geometrijskih veličin izdelka (GPS) - Razdelitev - 3. del: Metode za
specifikacijo in preverjanje (ISO 18183-3:2024)
Geometrical product specifications (GPS) - Partition - Part 3: Methods used for
specification and verification (ISO 18183-3:2024)
Geometrische Produktspezifikation (GPS) - Partition - Teil 3: Verfahren für die
Spezifikation und Verifikation (ISO 18183-3:2024)
Spécification géométrique des produits (GPS) - Partition - Partie 3: Méthodes utilisées
pour la spécification et la vérification (ISO 18183-3:2024)
Ta slovenski standard je istoveten z: EN ISO 18183-3:2024
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 18183-3
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2024
EUROPÄISCHE NORM
ICS 17.040.40
English Version
Geometrical product specifications (GPS) - Partition - Part
3: Methods used for specification and verification (ISO
18183-3:2024)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) - Partition -
Partition - Partie 3: Méthodes utilisées pour la Teil 3: Verfahren für die Spezifikation und Verifikation
spécification et la vérification (ISO 18183-3:2024) (ISO 18183-3:2024)
This European Standard was approved by CEN on 20 January 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 18183-3:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 18183-3:2024) 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 August 2024, and conflicting national standards shall
be withdrawn at the latest by August 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 18183-3:2024 has been approved by CEN as EN ISO 18183-3:2024 without any
modification.
International
Standard
ISO 18183-3
First edition
Geometrical product specifications
2024-02
(GPS) — Partition —
Part 3:
Methods used for specification and
verification
Spécification géométrique des produits (GPS) — Partition —
Partie 3: Méthodes utilisées pour la spécification et la vérification
Reference number
ISO 18183-3:2024(en) © ISO 2024

ISO 18183-3:2024(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
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 18183-3:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Default partition . 1
4.1 General .1
4.2 Default partition for surfaces .2
4.3 Default partition for lines .3
5 Explicit partition . 5
Annex A (informative) Additional information about curvature . 7
Annex B (informative) Implementations for the default partition .11
Annex C (informative) Relationship to the GPS matrix model . 19
Bibliography .20

iii
ISO 18183-3:2024(en)
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 document 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).
A list of all parts in the ISO 18183 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.

iv
ISO 18183-3:2024(en)
Introduction
This document is a geometrical product specification (GPS) standard and is to be regarded as a general GPS
standard (see ISO 14638). It influences chain links B, C and E of the chains of standards on size, distance,
form, orientation, location and run-out in the GPS matrix model.
The ISO GPS matrix model 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 specifications made in accordance with this document,
unless otherwise indicated.
For more detailed information on the relation of this document to other standards and the GPS matrix model,
see Annex C.
This document develops the concepts and methods for default partition of the skin model (in specification)
1)
and the sampled surface model (in verification) along with ISO 18183-1 and ISO 18183-2.
1) Under preparation. Stage at the time of publication: ISO/FDIS 18183-1:2023.

v
International Standard ISO 18183-3:2024(en)
Geometrical product specifications (GPS) — Partition —
Part 3:
Methods used for specification and verification
1 Scope
This document specifies the procedure for the partition operation of geometrical product specification and
verification.
This document does not apply to profile and areal surface texture.
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.
2)
ISO 18183-1 , Geometrical product specifications (GPS) — Partition — Part 1: Vocabulary and basic concepts
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 18183-1 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 Electrope
...