Standard Swedish standard · SS-EN ISO 25378:2011

Geometrical product specifications (GPS) - Characteristics and conditions - Definitions (ISO 25378:2011)

Status: Valid

Scope
This International Standard 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.

This International Standard 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.

This International Standard 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).

This International Standard is not intended to define GPS specifications, symbology or other types of expression.

Subjects

Geometrical Product Specification (GPS) (17.040.40)


Product information

Language: English

Written by: GPS och verifiering - Toleranser, SIS/TK 507/AG 05

International title: Geometrical product specifications (GPS) - Characteristics and conditions - Definitions (ISO 25378:2011)

Article no: STD-77639

Edition: 1

Approved: 4/19/2011

No of pages: 76