ISO 23055:2020

Ships and marine technology — Design requirements for international ballast water transfer connection flange

Publication date: Jan 31, 2020

General information

Current stage: 90.60 Effective date: Jun 5, 2025

Originator: ISO

Owner: ISO/TC 8/SC 3

Type: International Standard

ICS: 47.020.30

Languages: English

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Status: Published

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Scope

This document specifies the material requirements and dimensions of an international flange for the transfer of ballast water between a ship and a shore reception facility, or between ships.
It does not address any reconfiguration of the ship's ballast water piping system necessary to connect to the shore-side, e.g. construction of piping from the ship lower machinery levels to the main deck transfer area.

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PUBLISHED
ISO 23055:2020
90.60 Close of review
Jun 5, 2025