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ISO 25378:2011

Current Revision

Geometrical product specifications (GPS) - Characteristics and conditions - Definitions

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ISO 25378:2011 defines general terms for geometrical specifications, characteristics and conditions. These definitions are based on concepts developed in ISO 17450-1 and ISO 22432 and they are given by using a mathematical description based on Annex B of ISO 17450-1:2011.

ISO 25378:2011 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 standardization for industry and software makers in a consistent manner.

ISO 25378:2011 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, and
  • a population of assemblies.

These definitions are based on concepts of operators and the duality principle contained in ISO 17450-1 and ISO/TS 17450-2 and on the description of types of geometrical features defined in ISO 22432.

Conceptually, these specification operators can be used as specification operators or as verification operators (duality principle).

ISO 25378:2011 is not intended to define GPS specifications, symbology or other types of expression.


SDO ISO: International Organization for Standardization
Document Number ISO 25378
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 213
Publish Date Document Id Type View
Not Available ISO 25378:2011 Revision