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STANDARD 4351
First edition
2023-12
Geometrical product specifications
(GPS) — Association
Spécification géométrique des produits (GPS) — Association
Reference number
ISO 4351:2023(E)
© ISO 2023
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ISO 4351:2023(E)
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© ISO 2023
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© ISO 2023 – All rights reserved
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ISO 4351:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Association specification elements description of association process.3
5 Association criterion . 4
5.1 General . 4
5.2 Objective function description . 5
5.3 Association constraint . 6
5.4 Material offset . 7
6 Specification elements . 7
Annex A (informative) Non-enclosing feature/enclosing feature — Definitions .11
Annex B (informative) Illustration of results of association .13
Annex C (informative) Relationship to the ISO GPS matrix model .15
Bibliography .16
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© ISO 2023 – All rights reserved
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ISO 4351:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures u
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