NF EN ISO 14405-2

NF EN ISO 14405-2

February 2012
Standard Cancelled

Geometrical product specifications (GPS) - Dimensional tolerancing - Part 2 : dimensions other than linear sizes

ISO 14405-2:2011 illustrates the use of geometrical tolerancing for dimensions that are not linear sizes to avoid the ambiguity that the use of ± tolerances on these dimensions causes. Both linear and angular dimensions, except size of features of size, are covered. Dimensional tolerancing can be indicated by ± tolerancing or geometrical tolerancing.The ambiguity caused by using ± tolerances for dimensions other than linear sizes is explained in an informative annex.

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National standards and national normative documents

Publication date

February 2012

Number of pages

31 p.

Reference

NF EN ISO 14405-2

ICS Codes

17.040.10   Limits and fits
17.040.40   Geometrical Product Specification (GPS)

Classification index

E04-563-2

Print number

1 - 31/01/2012

International kinship

ISO 14405-2:2011

European kinship

EN ISO 14405-2:2011
Sumary
Geometrical product specifications (GPS) - Dimensional tolerancing - Part 2 : dimensions other than linear sizes

ISO 14405-2:2011 illustrates the use of geometrical tolerancing for dimensions that are not linear sizes to avoid the ambiguity that the use of ± tolerances on these dimensions causes. Both linear and angular dimensions, except size of features of size, are covered.

Dimensional tolerancing can be indicated by ± tolerancing or geometrical tolerancing.

The ambiguity caused by using ± tolerances for dimensions other than linear sizes is explained in an informative annex.

Standard replaced by (1)
NF EN ISO 14405-2
January 2019
Standard Current
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.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Principes et règles de cotation des tolérances associées
    3
  • 5 Unités utilisées sur les dessins relatifs aux dimensions
    4
  • 6 Indication des tolérances pour dimensions linéaires et angulaires
    4
  • 7 Illustrations de tolérancement en plus ou moins ambigu par rapport au tolérancement géométrique non ambigu
    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
    7
  • 7.5 Dimension du rayon
    8
  • 7.6 Distance linéaire entre deux éléments intégraux non plans
    8
  • 7.7 Distance linéaire dans deux directions
    9
  • 8 Tolérancement angulaire
    10
  • 8.1 Tolérancement dimensionnel applicable aux distances angulaires
    10
  • 8.2 Exemples de tolérancement géométrique applicable aux distances angulaires entre deux éléments intégraux
    11
  • 8.3 Distance angulaire entre un élément intégral et un élément dérivé
    12
  • Annexe A (informative) Explications et exemples d'ambiguïté causée par l'utilisation de tolérances en plus ou moins pour des dimensions autres que des tailles linéaires
    13
  • Annexe B (informative) Relation avec la matrice GPS
    21
  • Bibliographie
    23
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