DANSK DS/EN ISO 25378 PDF

This document defines general terms for geometrical specifications, characteristics and conditions. These definitions are based on concepts developed in ISO/TS 17450-1 and ISO 22432 and they are given by using a mathematical description based on Annex B of ISO/TS 17450-1. This document is not intended for industrial use as such among designers, but is aimed to serve as the "road map" mapping out the requirements based on geometrical features, thus enabling future standardisation for industry and software makers in a consistent manner. "This document defines general types of geometrical characteristics and conditions, which can be used in GPS. These descriptions are applicable to : - a workpiece, - an assembly, - a population of workpieces - a population of assemblies. These definitions are based on concepts of operators and the duality principle contained in ISO/TS 17450 -1 and ISO/TS 17450-2 and description on types of geometrical features defined in ISO 22432. Conceptually, these specification operators can be used as specification operators or as verification operators (duality principle). This document is not intended to define GPS specifications, its symbology or other types of expression. This document is not intended for industrial use as such among designers, but is aimed to serve as the "road map" mapping out the requirements based on geometrical features, thus enabling future standardisation for industry and software developers in a consistent manner.