ISO 23121-2:2019 PDF

Name: ISO 23121-2:2019 — Ships and marine technology — Inflatable buoyancy support systems against flooding of ships — Part 2: Buoyancy chamber
SKU: ISO 23121-2:2019
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Ships and marine technology — Inflatable buoyancy support systems against flooding of ships — Part 2: Buoyancy chamber

Название (английский):

ISO 23121-2:2019

Ships and marine technology — Inflatable buoyancy support systems against flooding of ships — Part 2: Buoyancy chamber

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 16 декабря 2019 г.
Издание:: ISO IS 23121 edition 1 version 1
ICS:: 47.020.10

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Описание (английский):

This document specifies general requirements, the materials and test methods for the buoyancy chamber of inflatable buoyancy support systems, which serve residual buoyancy for damaged ships not to sink or capsize, and which can be installed in machinery spaces and/or cargo holds.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 23121-2:2019 is an international standard published by the International Organization for Standardization (ISO) under the title “Ships and marine technology - Inflatable buoyancy support systems against flooding of ships - Part 2: Buoyancy chamber.” This document establishes general requirements, materials, and test methods for the buoyancy chamber component of inflatable buoyancy support systems used on ships. These systems are critical for providing residual buoyancy to damaged vessels, helping to prevent sinking or capsizing. The standard is applicable to buoyancy chambers that can be installed in machinery spaces and cargo holds of ships.

Key Topics

ISO 23121-2:2019 addresses several important areas, including:

General Requirements: Outlines performance expectations for buoyancy chambers, such as operating within an air temperature range from -15 °C to +65 °C.

Valves: Specifies types and functionality, including topping-up inflation valves, non-return valves, and relief valves, ensuring proper gas containment and release.

Indicators: Requirement for pressure and temperature indicators to monitor the inflation state and internal conditions of the buoyancy chamber.

High-Pressure Hose Assembly: Details on hose assemblies, if fitted, for gas transfer, including test and operational temperature ranges, leak resistance, and burst pressure requirements.

Materials: Defines acceptable materials for both metallic and fabric components, including corrosion resistance, strength, and performance under extreme conditions.

Test Methods: Describes procedures for testing tensile strength, tear resistance, low temperature resilience, porosity, ageing, hydrolysis, oil resistance, seam strength, and more.

Inflation and Pressure Tests: Mandates tests at different ambient, high, and low temperatures, as well as pressure retention and excess pressure tests for safety assurance.

Applications

ISO 23121-2:2019 is primarily used in the field of marine technology and ship safety. Its practical applications include:

Ship Design and Construction: Assists naval architects and engineers in integrating effective buoyancy support systems for improved survivability of damaged ships.

Safety Equipment Manufacturing: Guides manufacturers in producing buoyancy chambers that meet international safety and quality benchmarks.

Ship Operator Compliance: Helps operators ensure that installed inflatable buoyancy systems are fit for purpose and compliant with regulatory requirements, including the Safety of Life at Sea (SOLAS) convention.

Accident Response: Supports rapid response in marine accidents by ensuring buoyancy chambers can be quickly deployed and remain reliable across varying environmental conditions.

Inspections and Maintenance: Provides a reference for regular inspection and testing regimes to verify continued performance of buoyancy chambers throughout their service life.

Related Standards

For thorough implementation and quality management, ISO 23121-2:2019 should be used in conjunction with these related standards:

ISO 23121-1:2019 - Inflatable buoyancy support system against flooding of ships - Part 1: Gas supply system

ISO 1402 - Rubber and plastics hoses and hose assemblies - Hydrostatic testing

ISO 1419:2019 - Rubber- or plastics-coated fabrics - Accelerated-ageing tests

ISO 1421:2016 - Rubber- or plastics-coated fabrics - Determination of tensile strength and elongation at break

ISO 9650-3 - Small craft - Inflatable liferafts - Part 3: Materials

IMO Resolution MSC 81(70) - Testing of life-saving appliances

Summary

ISO 23121-2:2019 sets critical requirements and testing procedures for inflatable buoyancy chambers, underpinning the safety and reliability of ships’ flood countermeasures. Compliance with this standard ensures robust performance of buoyancy support systems in emergency scenarios, supporting vessel integrity and crew survival. Ship designers, manufacturers, operators, and safety inspectors will find practical guidance within this standard to enhance maritime safety and regulatory adherence.

ISO 23121-2:2019 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Summary

Технические детали

ISO 23121-1:2019

Ships and marine technology — Inflatable buoyancy support systems against flooding of ships — Part 1: Gas sup…

ISO 1419:2019

Rubber- or plastics-coated fabrics — Accelerated-ageing tests

ISO 1421:2016

Rubber- or plastics-coated fabrics — Determination of tensile strength and elongation at break

ISO 14026:2017

Environmental labels and declarations — Principles, requirements and guidelines for communication of footprin…

ISO 9650-3:2005

Small craft — Inflatable liferafts — Part 3: Material