NF EN ISO 5459

NF EN ISO 5459

October 2024
Standard Current

Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum systems

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.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2024

Number of pages

136 p.

Reference

NF EN ISO 5459

ICS Codes

01.100.20   Mechanical engineering drawings
17.040.40   Geometrical Product Specification (GPS)

Classification index

E04-554

Print number

1

International kinship

ISO 5459:2024

European kinship

EN ISO 5459:2024
Sumary
Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum systems

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.

Replaced standards (1)
NF EN ISO 5459
November 2011
Standard Cancelled
Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum-systems

ISO 5459:2011 specifies terminology, rules and methodology for the indication and understanding of datums and datum systems in technical product documentation. It also provides explanations to assist the user in understanding the concepts involved. ISO 5459:2011 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 ISO 5459:2011. The detailed rules for maximum and least material requirements for datums are given in ISO 2692.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Symboles
  • 5 Rôle des références spécifiées
  • 6 Concepts de base
  • 7 Langage graphique
  • 8 Opérateurs de spécification pour référence spécifiée
  • A Association pour références spécifiées
  • B Classes d'invariance
  • C Exemples
  • D Pratiques révolues
  • E Exemples d'un système de références spécifiées ou d'une référence spécifiée commune établies à partir d'éléments de contact
  • F Relations et dimensions des symboles graphiques
  • G Établissement d'un système de coordonnées du système de références spécifiées à partir d'un système de références spécifiées
  • H Symboles de filtres et indice d'imbrication lié
  • I Question des contraintes d'orientation et de position dans les systèmes de références spécifiées
  • J Filtrage d'un élément de référence qui est nominalement un plan
  • K Relation avec le modèle de matrice GPS
  • Bibliographie
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