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GB/T 45488-2025: Ships and marine technology - Fireproof watertight hatch covers
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45488-2025 | English | 274 |
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Ships and marine technology - Fireproof watertight hatch covers
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GB/T 45488-2025
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Standard similar to GB/T 45488-2025 GB/T 10841 GB/T 45485 Basic data | Standard ID | GB/T 45488-2025 (GB/T45488-2025) | | Description (Translated English) | Ships and marine technology - Fireproof watertight hatch covers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U26 | | Classification of International Standard | 47.020.50 | | Word Count Estimation | 14,134 | | Date of Issue | 2025-03-28 | | Date of Implementation | 7/1/2025 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45488-2025: Ships and marine technology - Fireproof watertight hatch covers---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.
ICS 47.020.50
CCSU26
National Standard of the People's Republic of China
Ships and offshore technology Fireproof and watertight hatch covers
(ISO 24169.2022, IDT)
Released on 2025-03-28
2025-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification and labeling 1
5 Materials 4
6 Processing quality 4
7 Test 5
8 Status display 5
9 Marking, packaging, transportation and storage 5
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 for standardization documents"
Drafting is required.
This document is equivalent to ISO 24169.2022 "Fireproof and watertight hatch covers for ships and offshore technology".
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 Ship Outfitting Standardization (SAC/TC129).
This document was drafted by. Jiangyin Huangshan Ship Parts Co., Ltd., China Shipbuilding Industry Corporation 704 Research Institute, Hudong Zhong
China Shipbuilding (Group) Co., Ltd., Jiangnan Shipbuilding (Group) Co., Ltd., CSSC Chengxi Shipbuilding Co., Ltd., Zhejiang Hexing Shipbuilding Co., Ltd.
Limited company.
The main drafters of this document are. Yao Fang, Huang Feng, Hu Fangzhen, Miao Hongjuan, Tao Dongming, Yang Longxia, Zhang Xia, Sun Jiaxiu, Li Yongfu, Ding Yunlai,
Zheng Weimin, Zhou Jianxiang, and Chen Cunyu.
Ships and offshore technology Fireproof and watertight hatch covers
1 Scope
This document specifies the classification, marking, requirements, test methods,
Inspection rules, marking, packaging, transportation and storage.
This document applies to the design, manufacture and acceptance of fireproof and watertight hatch covers installed on ship decks with a water pressure of 0.1 MPa.
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.
ISO 8501-1 Surface preparation of steel substrates before application of paint - Visual assessment of surface cleanliness - Part 1.Uncoated steel substrates
of previous coatings)
Note. GB/T 8923.1-2011 Surface preparation of steel materials before coating, Visual assessment of surface cleanliness Part 1.Uncoated steel surfaces and
Rust level and treatment level of steel surface after complete removal of the original coating (ISO 8501-1.2007, IDT)
IMO International Code for the Application of Fire Test Procedures,.2010, Resolution 307(88), as amended
There are no terms or definitions that require definition in this document.
4 Classification and labeling
4.1 Type
4.1.1 Hatch covers are to be classified into the following two types according to their shapes.
a) Type A. round hatch cover;
b) Type B - square or rectangular hatch cover.
4.1.2 According to the fire protection level, watertight hatch covers are to be divided into three levels. A-60, A-30 and A-0.
4.2 Structure and main dimensions
4.2.1 An example of the structure and main dimensions of type A hatch covers is shown in Figure 1 and Table 1.
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