ISO-2692 › Historical Revision Information
Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)

ISO-2692 - 4TH EDITION - CURRENT
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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 â..assembly of partsâ.. (for MMR) or â..minimum wall thicknessâ.. (for LMR). However, the MMR and LMR can also be used to fulfil other functional design requirements.

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Document Number

ISO 2692:2021

Revision Level

4TH EDITION

Status

Current

Publication Date

June 1, 2021

Committee Number

ISO/TC 213