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EVS-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)

General information
Valid from 20.07.2021
Base Documents
ISO 2692:2021; EN ISO 2692:2021
Directives or regulations
None

Standard history

Status
Date
Type
Name
20.07.2021
Main
04.02.2015
Main
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.
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