NF EN ISO 2692

NF EN ISO 2692

March 2015
Standard Cancelled

Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)

ISO 2692:2014 defines the maximum material requirement, the least material requirement and the reciprocity requirement. These requirements can only be applied to features of size.These requirements are used to control specific functions of workpieces where size and geometry are interdependent, e.g. to fulfil the functions "assembly of parts" (for maximum material requirement) or "minimum wall thickness" (for least material requirement). However, the maximum material requirement and least material requirement are also used to fulfil other functional design requirements.Considering this interdependence between size and geometry, the principle of independency defined in ISO 8015 does not apply when the maximum material requirement, least material requirement, or reciprocity requirement, are used.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2015

Number of pages

60 p.

Reference

NF EN ISO 2692

ICS Codes

01.100.20   Mechanical engineering drawings
17.040.40   Geometrical Product Specification (GPS)

Classification index

E04-555

Print number

1

International kinship

ISO 2692:2014

European kinship

EN ISO 2692:2014
Sumary
Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)

ISO 2692:2014 defines the maximum material requirement, the least material requirement and the reciprocity requirement. These requirements can only be applied to features of size.

These requirements are used to control specific functions of workpieces where size and geometry are interdependent, e.g. to fulfil the functions "assembly of parts" (for maximum material requirement) or "minimum wall thickness" (for least material requirement). However, the maximum material requirement and least material requirement are also used to fulfil other functional design requirements.

Considering this interdependence between size and geometry, the principle of independency defined in ISO 8015 does not apply when the maximum material requirement, least material requirement, or reciprocity requirement, are used.

Replaced standards (1)
NF EN ISO 2692
March 2007
Standard Cancelled
Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement

ISO 2692:2006 defines the maximum material requirement, the least material requirement and the reciprocity requirement, and specifies their applications. These requirements are used to control specific functions of workpieces where size and geometry are interdependent, e.g. to fulfil the functions assembly of parts (for maximum material requirement) and minimum wall thickness (for least material requirement). However, the maximum material requirement and least material requirement are also used to fulfil other functional design requirements.

Standard replaced by (1)
NF EN ISO 2692
June 2021
Standard Current
Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)

This document defines the maximum material requirement (MMR), the least material requirement (LMR) and the reciprocity requirement (RPR). These requirements can only be applied to linear features of size of cylindrical type or two parallel opposite planes type. These requirements are often used to control specific functions of workpieces where size and geometry are interdependent, for example to fulfil the functions “assembly of parts” (for MMR) or “minimum wall thickness” (for LMR). However, the MMR and LMR can also be used to fulfil other functional design requirements.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Exigence du maximum de matière, MMR, et exigence du minimum de matière, LMR
    5
  • 5 Exigence de réciprocité, RPR
    11
  • Annexe A (informative) Exemples de tolérancements avec M, L et R
    12
  • Annexe B (informative) Vue d'ensemble des concepts
    47
  • Annexe C (informative) Relation avec la matrice GPS
    48
  • Bibliographie
    50
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