SIST EN ISO 14405-1:2025

SLOVENSKI STANDARD
01-november-2025
Specifikacija geometrijskih veličin izdelka - Tolerance dimenzij - 1. del: Dolžinske
mere (ISO 14405-1:2025)
Geometrical product specifications (GPS) - Dimensional tolerancing - Part 1: Linear sizes
(ISO 14405-1:2025)
Geometrische Produktspezifikation (GPS) - Dimensionelle Tolerierung - Teil 1: Lineare
Größenmaße (ISO 14405-1:2025)
Spécification géométrique des produits (GPS) - Tolérancement dimensionnel - Partie 1:
Tailles linéaires (ISO 14405-1:2025)
Ta slovenski standard je istoveten z: EN ISO 14405-1:2025
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 14405-1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2025
EUROPÄISCHE NORM
ICS 17.040.40 Supersedes EN ISO 14405-1:2016
English Version
Geometrical product specifications (GPS) - Dimensional
tolerancing - Part 1: Linear sizes (ISO 14405-1:2025)
Spécification géométrique des produits (GPS) - Geometrische Produktspezifikation (GPS) -
Tolérancement dimensionnel - Partie 1: Tailles Dimensionelle Tolerierung - Teil 1: Lineare
linéaires (ISO 14405-1:2025) Größenmaße (ISO 14405-1:2025)
This European Standard was approved by CEN on 5 July 2025.

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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14405-1:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 14405-1:2025) 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 February 2026, and conflicting national standards
shall be withdrawn at the latest by February 2026.
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 14405-1:2016.
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 14405-1:2025 has been approved by CEN as EN ISO 14405-1:2025 without any
modification.
International
Standard
ISO 14405-1
Third edition
Geometrical product specifications
2025-08
(GPS) — Dimensional tolerancing —
Part 1:
Linear sizes
Spécification géométrique des produits (GPS) — Tolérancement
dimensionnel —
Partie 1: Tailles linéaires
Reference number
ISO 14405-1:2025(en) © ISO 2025

ISO 14405-1:2025(en)
© ISO 2025
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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Website: www.iso.org
Published in Switzerland
ii
ISO 14405-1:2025(en)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General .13
4.1 Specification modifiers and symbols . 13
4.2 Linear sizes .14
5 Basic linear size specification .16
5.1 General .16
5.2 Indication of a basic linear size specification .17
5.2.1 General .17
5.2.2 Indication of the diameter symbol .17
5.2.3 Indication of a basic linear size specification on one line .17
5.2.4 Indication of a basic linear size specification on two lines .18
5.3 Tolerancing of fits on assembly drawings .19
6 Default specification operator for linear size . 19
6.1 General .19
6.2 ISO default specification operator for linear size .19
6.3 Drawing-specific default specification operator for linear size . 20
7 Special specification operator for linear size .20
7.1 Stacked linear size specifications . 20
7.2 Indication areas .21
7.3 Sequence of specification elements for the linear size specification . 22
7.4 Sequence of specification elements for the upper and left indication areas . 25
7.5 Sequence of specification elements for the right indication area . 26
8 Indication of the toleranced feature on which the size characteristic is defined .26
8.1 Default case . 26
8.2 Linear size specification applied individually to several features of linear size . 26
8.3 Linear size specification applied to several features of linear size considered as a
common toleranced feature of linear size .27
8.4 United feature of linear size . 28
8.5 Fixed restricted portion of the feature of linear size . 29
8.6 Size characteristic in specific cross-sections of a feature of linear size . 29
8.6.1 Size characteristic in one specific cross-section of a feature of linear size . 29
8.6.2 Size characteristic in several specific cross-sections of a feature of linear size . 30
9 Envelope requirement .31
9.1 Envelope requirement for external features of linear size .31
9.2 Envelope requirement for internal features of linear size .32
10 Indication of linear portion sizes .34
11 Indication of linear section sizes .34
12 Filtration .35
13 Direction feature .35
Annex A (normative) Proportions and dimensions of graphical symbols .36
Annex B (normative) Graphical rules for linear size specifications .38
Annex C (informative) Data handling with statistical sizes . 41
Annex D (normative) Linear size specification on a circle as specific section of a cone .43
...