ISO 22081:2021
Geometrical product specifications (GPS) — Geometrical tolerancing — General geometrical specifications and general size specifications
This document gives rules for definition and interpretation of general geometrical specifications and general size specifications defined according to ISO 8015:2011, 5.12.
General specifications defined in other standards, and the link to these standards, are not covered by this document.
The general geometrical specifications and general size (linear or angular) specifications defined in this document apply only to integral features (including features of size).
These specifications do not apply to derived features or integral lines (see ISO 17450-1 for the definitions of integral features and derived features).
Dimensions other than linear or angular sizes (see ISO 14405-2) are not covered by this document.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Basic principles
4.1 General
4.2 Basic rule
4.3 Indication in a technical product documentation (TPD)
5 General geometrical specification
5.1 Rule for indicating the general geometrical specification
5.2 Rule for the applicability of the general geometrical specification
5.3 Rules for the datum system
6 General size specifications
6.1 Rule for indicating general size specifications
6.2 Rule for the applicability of general size specifications
Annex A (informative) Example of indication with reference to a table in the TPD
Annex B (informative) Examples
Annex C (informative) Relation to the GPS matrix model
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Basic principles
4.1 General
4.2 Basic rule
4.3 Indication in a technical product documentation (TPD)
5 General geometrical specification
5.1 Rule for indicating the general geometrical specification
5.2 Rule for the applicability of the general geometrical specification
5.3 Rules for the datum system
6 General size specifications
6.1 Rule for indicating general size specifications
6.2 Rule for the applicability of general size specifications
Annex A (informative) Example of indication with reference to a table in the TPD
Annex B (informative) Examples
Annex C (informative) Relation to the GPS matrix model
Bibliography