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ISO 14405-2:2018

(Main)

Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear or angular sizes

Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear or angular sizes

This document illustrates the ambiguity caused by the use of dimensional specifications to control properties other than linear or angular size and the benefit of using geometrical specifications instead. Dimensional tolerancing can be indicated by ± tolerancing or geometrical specifications. The ambiguity caused by using ± tolerances for dimensions other than linear or angular sizes (for individual tolerances and general tolerances according to, e.g. ISO 2768-1 and ISO 8062-3) is explained in Annex A. NOTE 1 The figures, as shown in this document, merely illustrate the text and are not intended to reflect actual usage. The figures are consequently simplified to indicate only the relevant principles. NOTE 2 For indications of dimensional specifications, see the following: — ISO 14405-1 for linear size; — ISO 14405-3 for angular size; — ISO 2538-1 and ISO 2538-2 for wedges; — ISO 3040 for cones. NOTE 3 The rules for geometrical specifications are given in ISO 1101.

Spécification géométrique des produits (GPS) — Tolérancement dimensionnel — Partie 2: Dimensions autres que tailles linéaires ou angulaires

Le présent document illustre l'ambigüité causée par l'utilisation de spécifications dimensionnelles pour maitriser les propriétés autres que les tailles linéaires ou angulaires et l'avantage d'utiliser des spécifications géométriques à la place. Le tolérancement dimensionnel peut être indiqué par un tolérancement en ± ou par des spécifications géométriques. L'ambigüité causée par l'utilisation de tolérances en ± pour les dimensions autres que les tailles linéaires ou angulaires (pour les tolérances individuelles et pour les tolérances générales selon, par exemple, ISO 2768‑1 et ISO 8062‑3) est expliquée dans l'Annexe A. NOTE 1 Les figures représentées dans le présent document illustrent simplement le texte et ne prétendent pas refléter des applications réelles. En conséquence, les figures sont simplifiées pour indiquer uniquement les principes pertinents. NOTE 2 Pour les indications de spécifications dimensionnelles, voir: — ISO 14405-1 pour les tailles linéaires; — ISO 14405-3 pour les tailles angulaires; — ISO 2538-1 et ISO 2538-2 pour les coins; — ISO 3040 pour les cônes. NOTE 3 Les règles de spécifications géométriques sont données dans l'ISO 1101.

General Information

Status
Published
Publication Date
13-Dec-2018
ICS
17.040.10 - Limits and fits
Technical Committee
ISO/TC 213 - Dimensional and geometrical product specifications and verification
Drafting Committee
ISO/TC 213/WG 12 - Size
Current Stage
Ref Project

Relations

Revises
ISO 14405-2:2011 - Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear sizes
Effective Date
17-Feb-2018

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Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 14405-2
Second edition
2018-12
Geometrical product specifications
(GPS) — Dimensional tolerancing —
Part 2:
Dimensions other than linear or
angular sizes
Spécification géométrique des produits (GPS) — Tolérancement
dimensionnel —
Partie 2: Dimensions autres que tailles linéaires ou angulaires
Reference number
ISO 14405-2:2018(E)
©
ISO 2018

---------------------- Page: 1 ----------------------
ISO 14405-2:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 14405-2:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principles and rules for indication of dimensions and related tolerances .2
5 Units used in drawings for dimensions . 3
6 Indication of tolerances for linear or angular dimensions . 4
7 Illustrations of ambiguous ± tolerancing vs. unambiguous geometrical specifications .4
7.1 General . 4
7.2 Linear distance between two integral features . 4
7.3 Linear distance between an integral and a derived feature . 6
7.4 Linear distance between two derived features . 7
7.5 Radius dimension . 8
7.6 Linear distance between non-planar integral features . 8
7.7 Linear distance in two directions . 9
8 Angular tolerancing .10
8.1 Examples of geometrical specifications applied to angular distance between two
integral features .10
8.2 Angular distance between an integral feature and a derived feature .11
Annex A (informative) Explanations and examples of the ambiguity caused by
using ± tolerances for dimensions other than linear size or angular size .13
Annex B (informative) Relation t
...

NORME ISO
INTERNATIONALE 14405-2
Deuxième édition
2018-12
Spécification géométrique des
produits (GPS) — Tolérancement
dimensionnel —
Partie 2:
Dimensions autres que tailles
linéaires ou angulaires
Geometrical product specifications (GPS) — Dimensional
tolerancing —
Part 2: Dimensions other than linear or angular sizes
Numéro de référence
ISO 14405-2:2018(F)
©
ISO 2018

---------------------- Page: 1 ----------------------
ISO 14405-2:2018(F)

DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2018
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
Fax: +41 22 749 09 47
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2018 – Tous droits réservés

---------------------- Page: 2 ----------------------
ISO 14405-2:2018(F)

Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application .1
2 Références normatives .1
3 Termes et définitions .2
4 Principes et règles d’indication des dimensions et des tolérances correspondantes .3
5 Unités utilisées sur les dessins et relatives aux dimensions .4
6 Indication des tolérances pour les dimensions linéaires ou angulaires .4
7 Illustrations de tolérancements en ± ambigus face à des spécifications
géométriques non ambigües . .5
7.1 Généralités . 5
7.2 Distance linéaire entre deux éléments intégraux . 5
7.3 Distance linéaire entre un élément intégral et un élément dérivé . 7
7.4 Distance linéaire entre deux éléments dérivés . 8
7.5 Dimension radiale . 9
7.6 Distance linéaire entre deux éléments intégraux non plans . 9
7.7 Distance linéaire dans deux directions .10
8 Tolérancement angulaire .10
8.1 Exemples de spécifications géométriques appliquées à une distance angulaire
entre deux éléments intégraux .10
8.2 Distance angulaire entre un élément intégral et un élément dérivé .11
Annexe A (informative) Explications et exemples sur l’ambigüité causée par l'usage de
tolérances en ± sur des dimensions autres que des tailles linéaires ou angulaires .13
Anne
...

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