ISO 23212:2021

INTERNATIONAL ISO
STANDARD 23212
First edition
Ships and marine technology — Flange
connection for fuel and lubrication oil
bunkering — Basic dimensions and
technical requirements
PROOF/ÉPREUVE
Reference number
ISO 23212:2021(E)
©
ISO 2021

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ISO 23212:2021(E)

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ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved

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ISO 23212:2021(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 1
5 Basic dimensions. 2
6 Technical requirements . 5
6.1 Dimensions . 5
6.2 Pressure rating . 6
6.3 Fasteners . 6
6.4 Materials . 6
6.5 Coatings . 6
6.6 Marking . 6
6.7 Packaging . 7
6.8 Installation . 7
© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii

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ISO 23212:2021(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
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This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 3, Piping and machinery.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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INTERNATIONAL STANDARD ISO 23212:2021(E)
Ships and marine technology — Flange connection for fuel
and lubrication oil bunkering — Basic dimensions and
technical requirements
1 Scope
This document specifies the basic dimensions of PN 10 flanged connections for bunker fuel and
lubricating oil transfer to ships from bunkering vessels or onshore facilities, and the technical
requirements for the design of such connections.
This document is not applicable to connections of the ship's fuel system for the reception of liquefied
natural gas.
2 Normative references
The following documents
...