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GB/T 14092.4-2025: Environmental condition for machinery products - Part 4: Ocean
Status: Valid GB/T 14092.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14092.4-2025 | English | 279 |
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Environmental condition for machinery products - Part 4: Ocean
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GB/T 14092.4-2025
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| GB/T 14092.4-2009 | English | 279 |
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Environmental condition for machinery products -- Ocean
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GB/T 14092.4-2009
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| GB/T 14092.4-1993 | English | 239 |
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Environmental condition for machinery products. Ocean
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GB/T 14092.4-1993
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Basic data | Standard ID | GB/T 14092.4-2025 (GB/T14092.4-2025) | | Description (Translated English) | Environmental condition for machinery products - Part 4: Ocean | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A21 | | Classification of International Standard | 19.020 | | Word Count Estimation | 14,136 | | Date of Issue | 2025-08-01 | | Date of Implementation | 2026-02-01 | | Older Standard (superseded by this standard) | GB/T 14092.4-2009 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 14092.4-2025: Environmental condition for machinery products - Part 4: Ocean---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/GBT14092.4-2025
ICS 19.020
CCSA21
National Standard of the People's Republic of China
Replaces GB/T 14092.4-2009
Environmental conditions for mechanical products Part 4.Marine
Released on August 1, 2025
Implementation on February 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Environmental Conditions 1
5 Severity level of various environmental conditions 1
5.1 Climate and environmental conditions (K) 1
5.2 Special climatic and environmental conditions (Z) 2
5.3 Chemically active substance conditions (C) 3
5.4 Mechanical environmental conditions (M) 4
5.5 Biological environmental conditions (B) 5
5.6 Hydrological conditions (H) 7
References 8
Figure 1 Relationship between salt spray concentration and distance from shore
Figure 2 Summary of vibration conditions 6
Figure 3 Summary of mechanical conditions 6
Table 1 Climate and environmental condition parameters 2
Table 2 Parameters of special climate conditions 2
Table 3 Mechanical environmental condition parameters 4
Table 4 Biological environmental condition parameters 5
Table 5 Hydrological condition parameters 7
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 is Part 4 of GB/T 14092 Environmental conditions for mechanical products. GB/T 14092 has been published in the following parts.
--- Part 1.Damp heat;
--- Part 2.Cold;
--- Part 3.High altitude;
--- Part 4.Ocean;
---Industrial corrosion;
---mine;
---Dry heat.
This document replaces GB/T 14092.4-2009 "Environmental conditions for mechanical products" and is different from GB/T 14092.4-2009 except for the conclusion.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) The content of the chapter "General Requirements" has been changed, and the chapter title has been changed to "Environmental Conditions" (see Chapter 4, Chapter 3 of the.2009 edition);
b) The contents of “climatic environmental conditions”, “chemically active substance conditions”, “mechanical environmental conditions” and “biological conditions” have been changed, with new
The new level replaces the old classification (see 5.1, 5.3, 5.4 and 5.5, 4.1, 4.2, 4.3 and 4.6 of the.2009 edition);
c) Added the content of “special climatic and environmental conditions” (see Section 5.2);
d) The content of “Conditions for mechanically active substances” has been deleted (see 4.4 of the.2009 edition).
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 Environmental Conditions and Environmental Testing for Electrical and Electronic Products (SAC/TC8).
This document was drafted by. State Grid Fujian Electric Power Co., Ltd., China Electric Power Research Institute Co., Ltd., Sun Yat-sen University, Shanghai
Measurement Design and Research Institute Co., Ltd., Shenzhen Inspection Group (Dongguan) Quality Technology Service Co., Ltd., Wuhan University, Yunnan Electric Power Test Institute (Group
Group) Co., Ltd., Yunda Energy Technology Group Co., Ltd., Aerospace Science and Industry Defense Technology Research and Experimental Center, Tsinghua University Shenzhen International Research Institute
Graduate School, China Special Aircraft Research Institute, Mingyang Smart Energy Group Co., Ltd., Xichang Satellite Launch Center, Weikai (Foshan) Testing Technology
Ltd.
The main drafters of this document are. Xia Xiaojian, Wang Jun, Shi Yu, Fan Shuangshuang, Ling Jianan, Zhu Jianhua, Lu Hailiang, Liu Xin, Sun Weizhong, Zhou Weida,
Yan Kanghua, Zhao Pengfei, Wang Xilin, He Weiping, Zhu Chen, Wei Yufeng, Wang Honglun, Ren Jing, Sai Juncong, Wan Chao, Che Hansheng, and Tang Xuan.
The previous versions of this document and the documents it replaces are as follows.
--- First published as GB/T 14092.4-1993 in.1993, first revised in.2009;
---This is the second revision.
introduction
GB/T 14092 Environmental Conditions for Mechanical Products covers the environmental conditions that mechanical products may encounter during storage, transportation and use.
Separate reference values are given for products with different usage conditions (e.g. outdoor storage with shelter, outdoor fixed use with weather protection, transportation).
These ratings also take into account the degree of restrictions on the product's use, ranging from strict restrictions (such as use in a temperature-controlled room) to
GB/T 14092 is intended to consist of the following seven parts.
--- Part 1.Humidity and heat. The purpose is to give the environmental parameters and severity of mechanical products in humid and hot environmental conditions
grade.
--- Part 2.Cold. The purpose is to give the environmental parameters and severity of mechanical products in cold environmental conditions
grade.
--- Part 3.High Altitude. The purpose is to give the environmental parameters and severity of mechanical products in high altitude environmental conditions.
Degree level.
--- Part 4.Ocean. The purpose is to provide the marine environmental conditions of mechanical products in the four major sea areas of Bohai Sea, Yellow Sea, East China Sea and South China Sea.
Environmental parameters to be endured and their severity levels.
--- Part 5.Industrial corrosion. The purpose is to give the environmental parameters and severity of the mechanical products in the industrial corrosion environment.
Degree level.
--- Part 6.Mines. The purpose is to give the environmental parameters and harsh
Degree level.
--- Part 7.Dry heat. The purpose is to give the environmental parameters and severity of mechanical products in dry heat environment conditions
grade.
my country is adjacent to four major sea areas, namely the Bohai Sea, the Yellow Sea, the East China Sea and the South China Sea. The marine environment is diverse and complex.
The influence of climate, biological conditions, salt spray deposition, waves and vibration and shock caused by mechanical structures on the use of products is multifaceted.
This paper describes the environmental conditions to which mechanical products are subjected when used in the Bohai Sea, Yellow Sea, East China Sea and South China Sea.
The severity levels specified in this document also apply to the southern part of the Japan Sea and the Seto
Products used in coastal areas such as the Inland Sea, western Philippine Sea, Coral Sea, Andaman Sea, and northern Arabian Sea.
Environmental conditions for mechanical products Part 4.Marine
1 Scope
This document specifies the marine environmental parameters and their severity levels for mechanical products in the four major sea areas of Bohai Sea, Yellow Sea, East China Sea and South China Sea.
This document is applicable to mechanical products for offshore fixed and mobile facilities when formulating environmental condition standards for products used outdoors and underwater at sea.
On time, select environmental parameters and severity levels.
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 4798.10 Introduction to environmental conditions for application of electrical and electronic products
3 Terms and Definitions
There are no terms or definitions that require definition in this document.
4 Environmental conditions
Marine environmental conditions are composed of climatic environmental conditions (K), special climatic environmental conditions (Z), chemically active substances (C), mechanical environmental conditions (M),
Biological environmental conditions (B) and hydrological conditions (H) are described in different levels.
Environmental condition classification allows for a variety of possible combinations of environmental conditions, which can truly reflect the impact of environmental conditions on the product usage process.
According to GB/T 4798.10, the environmental condition levels are identified by the following.
---Letters, climate and environmental conditions (K), special climate and environmental conditions (Z), chemically active substances (C), mechanical environmental conditions (M), biological
Environmental conditions (B) and hydrological conditions (H);
---Numbers. The numbers after K, Z, B, and H indicate the sea areas. 1, 2, 3, and 4 correspond to the Bohai Sea, the Yellow Sea, the East China Sea, and the South China Sea respectively; the numbers after C and M indicate the sea areas.
The number indicates the severity level, and the larger the number, the more severe the conditions.
Example. Level K3, where K represents climate and environmental conditions, and 3 represents the East China Sea.
5 Severity levels of various environmental conditions
5.1 Climate and environmental conditions (K)
The levels of climatic and environmental conditions are shown in Table 1.
K1.Applicable to the use of mechanical products in the Bohai Sea area.
K2.Applicable to the use of mechanical products in the Yellow Sea area.
K3.Applicable to the use of mechanical products in the East China Sea area.
K4.Applicable to the use of mechanical products in the South China Sea area.
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