90.93 Standard confirmed Jun 23, 2026
ISO
ISO/TC 8/SC 3 Piping and machinery
International Standard
47.020.30 Piping systems
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.
PUBLISHED
ISO 23055:2020
90.93
Standard confirmed
Jun 23, 2026