ISO 23121-1:2019

INTERNATIONAL ISO
STANDARD 23121-1
First edition
2019-12
Ships and marine technology —
Inflatable buoyancy support systems
against flooding of ships —
Part 1:
Gas supply system
Reference number
©
ISO 2019
© ISO 2019
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ii © ISO 2019 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
4.1 General . 2
4.2 Media . 2
4.3 Separation from habitable spaces . 3
5 Installation . 3
5.1 General . 3
5.2 Fastening . 3
5.3 Pressure regulator . 3
5.4 Location of the gas cylinders . 3
6 Activation . 3
6.1 General . 3
6.2 Engine shutdown . 3
6.3 Displayed information . 3
6.4 Warning for gas media . 4
Bibliography . 5
Foreword
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This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 8, Ship design.
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iv © ISO 2019 – All rights reserved

Introduction
This document is intended to support the development and technical implementation of various types
of buoyancy support systems.
In case of marine accidents, such as collisions and groundings, excessive damage and flo
...