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GB/T 21477-2024: Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods
Status: Valid GB/T 21477: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 21477-2024 | English | 164 |
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Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods
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GB/T 21477-2024
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| GB/T 21477-2008 | English | 154 |
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Ships and marine technology -- Fire resistance of hose assemblies -- Test methods
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GB/T 21477-2008
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Standard similar to GB/T 21477-2024 GB/T 33484 GB/T 21476 GB/T 21477 Basic data | Standard ID | GB/T 21477-2024 (GB/T21477-2024) | | Description (Translated English) | Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U23 | | Classification of International Standard | 47.020.50 | | Word Count Estimation | 8,854 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-02-01 | | Older Standard (superseded by this standard) | GB/T 21477-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 21477-2024: Ships and marine technology - Fire resistance of non-metallic hose assemblies and non-metallic compensators - Test methods
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21477-2024
ICS 47.020.50
CCSU23
National Standard of the People's Republic of China
Replaces GB/T 21477-2008
Ships and offshore technology non-metallic hose assemblies and
Test method for fire resistance of non-metallic compensators
(ISO 15540.2016, IDT)
Released on October 26, 2024
Implementation on February 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 21477-2008 "Test method for fire resistance of hose assemblies for ships and offshore technology" and
Compared with GB/T 21477-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the scope of application (see Chapter 1, Chapter 1 of the.2008 edition);
--- Increased the requirements for testing in standard devices (see Chapter 5);
--- Deleted the test duration requirements (see 7.5 of the.2008 edition);
--- Changed the pressure during the application of flame (see 8.6, 7.6 of the.2008 edition);
--- Added test duration requirements for non-metallic compensators (see 8.7);
--- Changed the pressure requirement after the flame is applied (see 8.8, 7.8 of the.2008 edition).
This document is equivalent to ISO 15540.2016 "Ships and offshore technology - Fire resistance of non-metallic hose assemblies and non-metallic expansion joints"
Energy Test Methods.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the National Technical Committee for Standardization of Marine Machinery (SAC/TC137).
This document was drafted by. China Shipbuilding Industry Corporation Comprehensive Technical and Economic Research Institute, Quanzhou Shanhe Fire Technology Co., Ltd.,
Zhejiang Changxing Xiaoxiang Marine Firefighting Equipment Technology Co., Ltd., Xi'an Lituo Firefighting Technology Co., Ltd., Zibo Chai Machinery Co., Ltd., Chongqing Transportation
University, Rizhao Gangda Shipbuilding Heavy Industry Co., Ltd., Hebei Yutong Special Hose Co., Ltd., Hanzheng Testing Technology Co., Ltd., China Classification Society
Maritime Standards Research Institute, Shanghai Yantu Ship and Maritime Technology Co., Ltd., Guangdong Radio and Television Metrology and Testing Group Co., Ltd., and Zhongliao Testing (Liaoning) Co., Ltd.
Limited Company.
The main drafters of this document are. Sun Meng, Chen Guoqing, Sun Yonggan, Huang Yashu, Gao Defeng, Li Chunming, Zhang Zanfeng, Yang Shanggang, Zhou Changjiang, Liu Jinping,
Xu Lei, Lin Jiangang, Cheng Debao, Gao Yanhua, Liu Chao, Ming Zhimao, Zhao Kelun, and Yuan Qingdi.
This document was first published in.2008 and this is the first revision.
Ships and offshore technology non-metallic hose assemblies and
Test method for fire resistance of non-metallic compensators
1 Scope
This document specifies the test methods for determining the fire resistance of non-metallic hose assemblies and non-metallic compensators with a nominal diameter not exceeding 150 mm.
When the test bench meets the conditions, this document is also applicable to the determination of the fire resistance of non-metallic hose assemblies and non-metallic compensators with larger nominal diameters.
performance.
This test is used to prove that after a flame is applied for a period of time on the test bench specified in GB/T 21476-2024, the
When the non-metallic hose assembly and non-metallic compensator can continue to remain leak-free.
The test medium is only water. To ensure that the operator can
For the safety of the test bench, flammable test media are not allowed to be used.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 21476-2024 Shipbuilding and offshore technology - Fire resistance test bench for non-metallic hose assemblies and non-metallic compensators
(ISO 15541.2016, IDT)
3 Terms and Definitions
There are no terms or definitions that require definition in this document.
4 Mark
The test mark used to indicate fire resistance performance consists of the following elements.
test
mark
Standard number
30-
Test duration, in minutes (min)
0.5-
Working pressure during application of flame, in MPa
40-
The pressure after the flame is applied is in MPa.
Test piece with fireproof sleeve F
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