IS 8000 : Part 2 : 2024/ISO 2692 : 2021 Geometrical Product Specifications (GPS) - Geometrical Tolerancing - Part 2 Maximum Material Requirement (MMR), Least Material Requirement (LMR) and Reciprocity Requirement (RPR)
NATIONAL FOREWORD
This Indian Standard (Part 2) (Third Revision) which is identical to ISO 2692 : 2021 'Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Drawings Sectional Committee and approval of the Production and General Engineering Division Council.
This standard was first published in 1976 and subsequently revised in 1992 and 2019. The original version of this standard, IS 8000 (Part 2) : 1976 'Geometrical tolerancing on technical drawings: Part 2 Maximum material principle' was based on ISO 1101-2 : 1974 'Technical drawings - Tolerancing of form and of position - Part 2 : Maximum material principle'. In the first revision of this standard, harmonization with International Standard was made by the adoption of ISO 2692 : 1988 'Technical drawings - Geometrical tolerancing - Maximum material principle' which had superseded ISO 1101-2 : 1974. Second revision of this standard was identical to ISO 2692 : 2014. In this revision of this standard has been undertaken to align it with the latest version of ISO 2692.
This standard is published in three parts. Other parts in this series are:
Part 1 Tolerances of form, orientation, location and run-out
Part 3 Profile tolerancing
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:
a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and
b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.