Standard Store - GD&T Standards BS EN ISO 1101:2005 Geometrical product specifications (GPS). Geometrical tolerancing. Tolerances of form, orientation, location and run-out - (275.00) ISO 2692:2006 Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) - (122.00) Standard Store