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EN ISO 2692:2021

Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) (ISO 2692:2021) EN ISO 2692:2021

Publication date:   Oct 14, 2021

General information

60.60 Standard published   Jun 23, 2021

CEN

CEN/TC 290 Dimensional and geometrical product specification and verification

European Norm

01.100.20   Mechanical engineering drawings

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
EN ISO 2692:2014

NOW

PUBLISHED
EN ISO 2692:2021
60.60 Standard published
Jun 23, 2021