DIN EN ISO 4351:2024-05

This document gives the terminology and basic concepts of association, including objective functions and association constraints and material offset. This document is not intended to specify association defaults and GPS syntax which are introduced in other (ISO GPS) International Standards. The association can be used to establish for example: - a datum; - a reference feature for a geometrical specification or for a surface texture specification; - an associated toleranced feature; - any dimensional characteristic; - an intersection plane, an orientation plane, a collection plane or a direction feature. This document (EN ISO 4351:2023) has been prepared by Technical Committee ISO/TC 213 "Dimensional and geometrical product specifications and verification" in collaboration with Technical Committee CEN/TC 290 "Dimensional and geometrical product specification and verification", the secretariat of which is held by AFNOR (France). The responsible national standardization committee is Working Committee NA 152-03-02 AA "CEN/ISO Geometrische Produktspezifikation und -prüfung" ("CEN/ISO Geometrical product specifications and verification") at DIN Standards Committee Technical Fundamentals (NATG).