GB/T 41891.2-2022 English PDF

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GB/T 41891.2-2022: Ships and marine technology - Inflatable buoyancy support system against flooding of ships - Part 2: Buoyancy chamber
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Basic data

Standard ID: GB/T 41891.2-2022 (GB/T41891.2-2022)
Description (Translated English): Ships and marine technology - Inflatable buoyancy support system against flooding of ships - Part 2: Buoyancy chamber
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U23
Classification of International Standard: 47.020.20
Word Count Estimation: 10,165
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41891.2-2022: Ships and marine technology - Inflatable buoyancy support system against flooding of ships - Part 2: Buoyancy chamber

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ships and marine technology -- Inflatable buoyancy support system against flooding of ships -- Part 2.Buoyancy chamber ICS 47.020.20 CCSU23 National Standards of People's Republic of China Ships and marine technology ships for protection against water immersion Inflatable Buoyancy Support Systems Part 2.Floating Tanks floodingofships-Part 2.Buoyancychamber (ISO 23121-2.2019, IDT) Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is part 2 of GB/T 41891 "Inflatable buoyancy support systems for flood protection of ships and marine technical ships". GB/T 41891 has released the following parts. --- Part 1.Air supply system; --- Part 2.Floating tank. This document is equivalent to ISO 23121-2.2019 "Inflatable buoyancy support systems for flood protection of ships and marine technology ships No. 2" Section. Floating Box." Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Marine Machinery Standardization Technical Committee (SAC/TC137). This document is drafted by. China Shipbuilding Industry Research Institute of Comprehensive Technology and Economics, Jiangsu Yangzi Xinfu Shipbuilding Co., Ltd., Qingdao Yongtai Shipbuilding Supplies Co., Ltd., Jiangxi Ronghe Special Fire-fighting Equipment Manufacturing Co., Ltd., Fujian Tianguang Fire-fighting Co., Ltd., Zhejiang Baiyun Pump Co., Ltd., Guangdong Yonghong Fire Equipment Co., Ltd. and Xi'an Rio Tinto Fire Technology Co., Ltd. The main drafters of this document. Sun Meng, Huang Yashu, Yang Xueyan, Xu Zhi, Yu Xinbo, Song Tao, Liu Yinjun, Zhang Zanfeng, Liao Jianhua, Ye Xiong, Shen Zhenying.

Introduction

GB/T 41891 "Inflatable buoyancy support system for water immersion protection of ships and offshore technical ships" will regulate the inflatable buoyancy support system for ships' water immersion protection Product performance and inspection methods of buoyancy support systems, providing technical basis for the use and inspection of inflatable buoyancy support systems for ship immersion protection It consists of the following two parts. --- Part 1.Air supply system. It can be used for installation, commissioning and inspection of gas supply system. --- Part 2.Floating tank. It can be used for the design, manufacture and inspection of floating tank products. Ships and marine technology ships for protection against water immersion Inflatable Buoyancy Support Systems Part 2.Floating Tanks

1 Scope

This document specifies the material requirements and test methods for the buoyancy tank of the inflatable buoyancy support system used in the protection of ships against flooding. The buoyancy support system can Sufficient to be installed in the engine room and/or cargo hold to provide additional buoyancy for damaged ships to prevent sinking or capsizing.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 24133-2009 Standard environment for conditioning and testing of rubber or plastic coated fabrics (ISO 2231.1989, IDT) semblies-Hydrostatic testing) Note. GB/T 5563-2013 Hydrostatic test method for rubber and plastic hoses and hose assemblies (ISO 1402.2009, IDT) ISO 1419.2019 Accelerated weathering test for rubber or plastics-coated fabrics (Rubber-orplastics-coatedfabrics-Accel- erated-ageing tests) Note. GB/T 24135-2009 Accelerated aging test of rubber or plastic coated fabrics (ISO 1419.1995, IDT) ISO 1421.2016 Determination of the bursting strength of rubber or plastics-coated fabrics (Rubber-orplastics-coatedfabrics-De- ISO 2411 Rubber-orplastics-coatedfabrics-Determination ISO 4674-1.2016 Determination of tear properties of rubber or plastic coated fabrics - Part 1.Constant speed tearing method (Rubber- ISO 4675 Rubber-orplastics-coated fabrics-Low-tem- peraturebendtest) Note. GB/T 18426-2021 Low temperature bending test of rubber or plastic coated fabrics (ISO 4675.2017, IDT) ISO 5978 Rubber-orplastics-coated fabrics-Determi- spraytests) Note. GB/T 10125-2021 Artificial Atmosphere Corrosion Test Salt Spray Test (ISO 9227.2017, MOD) trials) Note. GB/T 34315.3-2017 Small craft inflatable liferafts - Part 3.Materials (ISO 9650-3.2009, IDT) IMOMSC81(70) International Maritime Organization Maritime Safety Council Resolution 81(70)..1998, Amendments to Testing of Life-Saving Appliances ......

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