GB/T 14092.2-2023 English PDF (GBT14092.2-2023)

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GB/T 14092.2-2023: Environmental condition for machinery products -- Part 2: Cold
GB/T 14092.2-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 19.040
CCS A 21
Replacing GB/T 14092.2-2009
Environmental Condition for Machinery Products - Part 2:
Cold
ISSUED ON: MAY 23, 2023
IMPLEMENTED ON: DECEMBER 1, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative References ... 7
3 Terms and Definitions ... 7
4 Environmental Condition ... 7
5 Severity Levels of Various Environmental Conditions ... 8
5.1 Environmental Condition of Climate (K) ... 8
5.2 Environmental Condition of Special Climate (Z) ... 9
5.3 Condition of Chemical Active Substance (C) ... 10
5.4 Condition of Mechanical Active Substance (S) ... 12
5.5 Mechanical Environmental Condition (M) ... 14
5.6 Biological Environmental Condition (B) ... 18
Bibliography ... 20
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document is Part 2 of GB/T 14092 Environmental Condition for Machinery Products.
GB/T 14092 has issued the following parts:
---GB/T 14092.1-2023 Environmental Condition for Machinery Products - Part 1: Warm
Damp;
---GB/T 14092.2-2023 Environmental Condition for Machinery Products - Part 2: Cold;
---GB/T 14092.3-2009 Environmental Condition for Machinery Products - High Altitude;
---GB/T 14092.4-2009 Environmental Condition for Machinery Products - Ocean;
---GB/T 14092.5-2009 Environmental Condition for Machinery Products - Industrial
Corrosion;
---GB/T 14092.6-2009 Environmental Condition for Machinery Products - Mine;
---GB/T 14092.7-2009 Environmental Condition for Machinery Products - Dry Heat.
This document serves as a replacement of GB/T 14092.2-2009 Environmental Condition for
Machinery Products - Cold. In comparison with GB/T 14092.2-2009, apart from structural
adjustments and editorial modifications, the main technical changes are as follows:
a) The content of the chapter “Environmental Condition of Usage” is modified, and the
title of the chapter is modified into “Environmental Condition” (see Chapter 4;
Chapter 3 of Version 2009);
b) The content of the section “parameter values of various environmental conditions” is
modified, and the title is modified into “severity levels of various environmental
conditions” (see Chapter 5; 3.7 of Version 2009);
c) The contents of “environmental condition of climate”, “environmental condition of
special climate”, “environmental condition of chemical active substance”,
“environmental condition of mechanical active substance” and “mechanical
environmental condition” are modified, and the new classification is used to replace
the old classification (see Table 1 ~ Table 5; Table 1, Table 2, Table 4 and Table 5 of
Version 2009);
d) The content of “biological environmental condition” is added (see 5.6).
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
Environmental Condition for Machinery Products - Part 2:
Cold
1 Scope
This document specifies the environmental parameters and severity levels of machinery
products in the environmental condition of cold.
This document applies to machinery products used in the environmental condition of cold.
The environmental condition stipulated in this document include the environmental parameters
and severity levels that the products are subject to and affected by. Applicable items and levels
are selected for various types of products in accordance with the degree of environmental
impact that they are subject to.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 4798.10 Environmental Conditions Existing in the Application of Electric and Electronic
Products - Guidance
3 Terms and Definitions
This document does not have terms or definitions that need to be defined.
4 Environmental Condition
The environmental condition of cold is respectively and hierarchically described by the
environmental condition of climate (K), the environmental condition of special climate (Z), the
condition of chemical active substance (C), the condition of mechanical active substance (S),
the condition of mechanical environment (M) and the condition of biological environment (B).
The classification of environmental conditions allows possible combinations of multiple
environmental conditions, which can truly reflect the impact of environmental conditions on
product storage, transportation and usage. For some environmental parameters, it is quite
difficult to quantify their severity levels.
In accordance with GB/T 4798.10, the level of environmental condition is marked as follows:
---The first digit, which identifies the application conditions (1 indicates storage, 2
indicates transportation, 3 indicates fixed use in a place with weather protection, and 4
indicates fixed use in a non-weather-protected place);
---Letter, the environmental condition of climate (K), the environmental condition of
special climate (Z), the condition of chemical active substance (C), the condition of
mechanical active substance (S), the mechanical environmental condition (M) and the
biological environmental condition (B);
---Another digit, which identifies the severity level. Generally, the larger the value, the
more severe the condition.
For example: level 2K30, in which, 2 indicates transportation; K indicates the
environmental condition of climate; 30 indicates the severity level.
5 Severity Levels of Various Environmental Conditions
5.1 Environmental Condition of Climate (K)
When choosing an appropriate level, it is necessary to pay attention to whether the
environmental condition of climate in the place with weather protection is affected by the
environment without weather protection, especially the impact of temperature and solar
radiation.
The severity levels of the environmental condition of climate are shown in Table 1.
1K40: applicable to storage with weather protection in the environmental condition of cold,
without the control of temperature and relative humidity.
1K41: applicable to outdoor sheltered storage in the environmental condition of cold.
1K42: applicable to outdoor storage without shelter in the environmental condition of cold.
2K40: applicable to transportation with weather protection in the environmental condition of
cold, in an unventilated box, without the control of temperature and relative humidity.
2K41: applicable to transportation without weather protection in the environmental condition
of cold.
3K40: applicable to fixed use with weather protection in the environmental condition of cold,
without the control of temperature and relative humidity.
4K40: applicable to outdoor sheltered fixed use without weather protection in the
environmental condition of cold.
4K41: applicable to outdoor fixed use without shelter and weather protectio...