NF ISO 129-1

NF ISO 129-1

January 2005
Standard Cancelled

Technical drawings - Indication of dimensions and tolerances - Part 1: general principles

ISO 129-1:2004 establishes the general principles of dimensioning applicable for all types of technical drawings.

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Main informations

Collections

National standards and national normative documents

Publication date

January 2005

Number of pages

37 p.

Reference

NF ISO 129-1

ICS Codes

01.100.01   Technical drawings in general

Classification index

E04-521-1

Print number

1 - 23/12/2004

International kinship

ISO 129-1:2004
Sumary
Technical drawings - Indication of dimensions and tolerances - Part 1: general principles

ISO 129-1:2004 establishes the general principles of dimensioning applicable for all types of technical drawings.

Standard replaced by (1)
NF ISO 129-1
April 2018
Standard Cancelled
Technical product documentation (TPD) - Presentation of dimensions and tolerances - Part 1 : general principles

ISO 129-1:2018 establishes the general principles for presentation of dimensions and associated tolerances that apply to 2D technical drawings in all disciplines and trades but which can also be applied to 3D applications. ISO 129-1:2018 does not cover the application of dimensional tolerances and their meaning. See ISO 14405‑1 for tolerancing principles. This document can only be used to describe the nominal model of a drawing, not the non-ideal surface model (skin model) used for tolerancing purposes (for more information on tolerancing specifications, see the list of GPS standards listed as normative reference or as bibliography) Considering the ISO 14405 series, the presentation of tolerance indication is unambiguous when it is applied to a dimension which is a size and ambiguous when the dimension is not a size. All rules presented in this document are available for any type of drawing (see ISO 29845). In addition, this document introduces the concept of property indicators, developed length, between, surface indicators, flag notes and textual instructions. NOTE 1 All figures are shown in 2D views only. NOTE 2 Additional information and details for construction engineering are given in ISO 6284.

Table of contents
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 3.1 Éléments
    2
  • 3.2 Traits de cotation
    2
  • 3.3 Cotes et dimensions
    3
  • 3.4 Disposition des cotes
    3
  • 4 Principes de cotation et d'inscription des tolérances
    4
  • 4.1 Principes généraux
    4
  • 4.2 Position des cotes
    4
  • 4.3 Unités de mesure des cotes
    5
  • 5 Éléments de cotation
    6
  • 5.1 Généralités
    6
  • 5.2 Ligne de cote
    6
  • 5.3 Indications d'extrémité et d'origine
    9
  • 5.4 Ligne d'attache
    9
  • 5.5 Trait de rappel de cote
    11
  • 5.6 Valeurs de cotes (cotes nominales)
    11
  • 5.7 Lettres pour représentation de cotes
    13
  • 5.8 Cotation tabulaire
    13
  • 6 Éléments d'inscription des tolérances
    14
  • 6.1 Règles générales
    14
  • 6.2 Écarts limites
    15
  • 6.3 Dimensions limites
    15
  • 7 Inscription des cotes spéciales
    16
  • 7.1 Symboles graphiques et alphabétiques pour les valeurs de cotes
    16
  • 7.2 Diamètres
    17
  • 7.3 Rayons
    17
  • 7.4 Sphères
    18
  • 7.5 Arcs, cordes et angles
    18
  • 7.6 Carrés
    20
  • 7.7 Éléments équidistants et répétitifs
    20
  • 7.8 Pièces symétriques
    23
  • 7.9 Indication des niveaux
    25
  • 7.10 Cotes des éléments non dessinés à l'échelle
    25
  • 7.11 Cotes auxiliaires
    25
  • 8 Dispositions des cotes
    25
  • 8.1 Généralités
    25
  • 8.2 Cotation en parallèle
    25
  • 8.3 Cotation à cotes superposées
    26
  • 8.4 Cotation en série
    27
  • 8.5 Cotation en coordonnées
    28
  • 8.6 Cotation combinée
    30
  • Annexe A (normative) Relations et dimensions des symboles graphiques
    31
  • Bibliographie
    33
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