GB/T 4798.2-1996 Environmental conditions for the transportation of electrical and electronic products

This standard specifies the environmental conditions that electrical and electronic products may be subjected to during transportation, such as climate, mechanical, biological, chemically active substances and mechanically active substances. Other products may also refer to it. This standard applies to water, rail, road and air transportation, including loading and unloading during transportation. GB/T 4798.2-1996 Environmental conditions for transportation of electrical and electronic products GB/T4798.2-1996 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Environmental conditions existing in the applicationof electric and electronic productsTransportation
GB/T 4798.2--1996
Replaces GB4798.284
This standard is not equivalent to the International Electrotechnical Commission (IEC) 75th Committee 721-3-2 publication (1985) (Classification and grading of environmental parameter groups and their severity - Transport) and No. 1 (1991) and No. 2 (1993) amendments. Subject content and scope of application
This standard specifies the environmental conditions that electric and electronic products may be subjected to during transportation, such as climate, mechanical, biological, chemically active substances and mechanically active substances. Other products It can also be used as a reference. This standard applies to water, rail, road and air transport, including loading and unloading during transportation. 2 Reference standards
GB4797.1 Temperature and humidity of natural environmental conditions for electrical and electronic products GB/T4798.10 Introduction to environmental conditions for application of electrical and electronic products GB11804 Terminology of environmental conditions for application of electrical and electronic products 3 Terms and codes
3.1 This standard adopts the terms specified in GB11804. 3.2 The environmental conditions in this standard use the following codes: Climate conditions - K;
Mechanical conditions - M ：
Biological conditions B;
Chemically active substances C;
Mechanically active substances --S.
4 General provisions
4.1 The environmental conditions classification provided by this standard includes four modes of transport. Individual environmental conditions are separately regulated by relevant standards based on this standard.
4.2 According to the provisions of GB/T4798.10, the various values ​​of environmental parameters specified in this standard refer to the extreme values ​​of the severity level proposed under certain environmental conditions. However, some environmental parameters cannot currently provide quantitative values ​​of severity, and can only be used as Qualitative analysis. 4.3 The principles for using the severity levels specified in this standard are as follows: a. The most severe environmental level that can meet the transportation of goods should be selected; b. The selected level should meet the environmental conditions that may be encountered during the actual transportation process (but not including accidental accidents). Even if there are excessive values, it is within a short time that can be ignored; when there are two or more modes of transportation, the environmental level should meet the more severe requirements. Approved by the State Bureau of Technical Supervision on June 17, 1996 652
Implemented on July 1, 1997
GB/T 4798.2-1996
4.4 The combination of each severity level is selected according to the actual situation of the transportation process. When the lowest level of each category 2K1/2B1/2S1/2M1 is combined, it means transportation under good environmental conditions. When the highest level of each category 2K5/2B3/2C3/2M4 is combined together, it means transportation under very severe environmental conditions. 4.5 Environmental conditions with higher levels in each category include environmental conditions with lower levels in each category. For a product, when considering the environmental conditions that it may encounter during transportation, all its categories and levels should be indicated. 4.6 During product transportation, if there is packaging, the environmental conditions specified in this standard will directly act on the packaging; if there is no packaging, they will directly act on the product itself.
4.7 When designing, manufacturing and packaging products, the levels of various environmental parameters that they may experience during use, transportation and storage should be considered, and the test levels, test methods and requirements for test equipment for relevant packaging should be formulated based on this standard. 4.8 This standard stipulates that 3000~5000m is high-altitude land transportation, and the code for its high-altitude land climate and environmental conditions is 2K4P. 5 Classification and grading of severity of various environmental conditions 5.1 The classification and grading of various parameters and severity levels in this standard are composed of codes and connected numbers. The larger the number, the higher the level and the more severe the environmental conditions. And the higher level includes the lower level. Example:
Severity level
Climate and environmental conditions
5.2 The classification of climatic conditions is shown in Table 1.
Environmental parameters
High temperature (unventilated
cabin, compartment, indoor\)
High temperature (ventilated
cabin, compartment, indoor
or outdoor\)
Air/air\
Air/water"
~25/+25
-25/+30
-45/15
50/+30
2K4P6)
50/+30
+40/+5
-65/+30
+55/+5
25/+ 30
+55/15
-65/+30
Environmental parameters
No sharp temperature and humidity changes
1With sharp temperature changes (at high
relative humidity)
Air/Air3
With sharp temperature changes (at high
moisture content)Air
Air/Air
Air pressure changes
Maximum wind speed
Other water sources
Water g/m2
mm/min
GB/T 4798.2-1996
Continued Table 1
25/+30
-50/+30
-50/+30
+70/+-15+70/+15-+ 60/+15
65/4-30
25/+30
-65/+30
+85/+15|+85/+15|+70/+15
Moist Surface
Note: 1) High temperature on the product surface can be caused by the ambient air temperature and solar radiation entering through windows or other holes. 2) High temperature on the product surface is affected by the ambient air temperature and solar radiation. 3) The product moves directly at the two specified temperatures. 4) The moisture content of the air given in the table is applicable when the temperature is reduced to the dew point. The relative humidity at lower temperatures is assumed to be approximately 100%. 5) 2K4 is the climatic environment conditions for land and sea transportation in my country (excluding land transportation at an altitude of 3000-5000m). 6) 2K4P is applicable to transportation conditions at an altitude of 3000-5000m (excluding cold areas). 7) 30m/s is often encountered; while wind speeds greater than or equal to 45m/s rarely occur. 5.3 The classification of biological conditions is shown in Table 2.
Environmental parameters
Conditions of cysts, fungi, etc.
Gnats Rodents and other animals that endanger products, except termites
Including termites
5.4 The classification of chemically active substances is shown in Table 3. Environmental parameters
Sulfur dioxide (SO2)
Hydrogen sulfide (H2S)
Nitrogen oxides (N),)
(expressed as nitrogen dioxide)
Hydrogen chloride (HCl)
Cyanfluoric acid (HF)
Nitrogen (NH)
GB/T 4798.2
cm\/m3
cm*/m3
cm\/m3
cm°/m2
cm*/m3
Salt spray conditions
Note: (i) The values ​​given in the table are the maximum values ​​reached in more than 30 minutes in a day. ②The values ​​in brackets refer to the average expected values ​​over a long period of time. 2C:3
Salt water conditions
3.7(1.85)
10（3.0)
3.3(0.66)
49(14)
(③)The values ​​in cm/m2 are calculated from the values ​​in mg/m2 at 20C, 101.3kPa. )The values ​​listed in the table are rounded. The following are similar. 5.5 The classification of mechanically active substances is shown in Table 4. Table 4
Environmental parameters
Sand particles in the air
Dust deposits
5.6 The classification of mechanical conditions is shown in Table 5. The typical shock response spectrum is shown in Figure 1. 2S2
4798.2-1996
National Research and Development
000200200201012000200200200120002002002010200020001012,
00~002
Maximum response acceleration α (m/\)
GB/T 4798.2—1996
Figure 1 Typical shock response spectrum (first maximum shock spectrum) Duration is 11 ms
Duration is 6ms
Half-sine pulse duration shock response spectrum 1000
Frequency (Ha)
A1 Overview
GB/T 4798.2--1996
Appendix A
Selection of severity levels for various environmental conditions
(Supplement)
Each environmental condition is composed of different environmental parameters and their severity levels, and each environmental parameter and its severity level may have different transportation conditions. Transportation conditions include protection measures under various environmental parameters during circulation, loading and unloading equipment, regional divisions and types of transportation tools. The severity of environmental conditions increases in order of severity. However, in some cases, such as wind speed, water from sources other than Lishui, inactive substances and vibration, it is impossible to specify the severity levels of two different conditions without understanding the product characteristics. In Table A1, the first column indicates various climate parameters and transportation conditions in the climate conditions; columns 2 to 8 indicate the climate types for domestic transportation, which are specified by GB4797.1-84 "Temperature and Humidity of Natural Environmental Conditions for Electrical and Electronic Products"; columns 9 to 17 indicate the climate types for international transportation, which are the same as the provisions of IEC Standard 721-2-1 "Ambient Temperature and Humidity in Nature". The climate types corresponding to the transportation conditions are indicated by the symbol × in columns 2 and 17. From columns 18 to 25, the vertical columns are marked with the symbol × to indicate the transportation conditions included in the severity level. The first × in the level column indicates the lowest level of the condition. The expression method of other tables is the same as above. A2 Selection of severity levels of various environmental conditions Table A2.1 Climate conditions are shown in Table A1 and Table A2.
Mild dry heat
Extremely dry heat
Constant humid heat
Cold】
Cold!
Sub-humid heat
GB/T 4798. 2--1996
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08+/05-
08+/0s-
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2+/92-
GB/T 4798.2-1996
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08+/59
Mild dry heat
Extremely hot
Steady humid heat
Cold!
Subhumid heat
Mild dry heat
Extreme heat
Constant humid heat
First transport!
Cold!
Subhumid heat
GB/T 4798.2—1996
S1+/02+
191+/98+
st+/98+
sI+/09+/S1+/02+S1+/02+
Transportation conditions
Low pressure
Ground transportation and pressurized cabin below 3000m above sea levelGround transportation above 3000m and below 5000m above sea level
No pressurization Pressurized cabin
Air pressure change
No sharp altitude change
In unpressurized cabin, affected by altitude change
There is climate protection inside, not affected by wind. There are wind protection measures outdoors
kPa/min
Open-air transportation, no wind protection measures, except hurricanes. Worldwide climate regions
Solar radiationwww.bzxz.net
No climate protection, but there is solar radiation protection or there is climate protection, Climate regions of the world exposed to solar radiation only from windows
Climate regions of the world exposed to direct solar radiation without climate protection
High-altitude ground transportation without climate protection and direct solar radiation
Heat radiation
No heat source nearby
Heat source nearby
With protection measures
mm/min
Climate regions with normal rainfall intensity without climate protection and rain protection
Climate regions of the world exposed to normal rainfall without climate protection and rain protection
Other water sources
With waterproof measures
Splashing water (splashing from the ground)
Spraying water by spray and jets (such as washing), sea waves on the nails, splashing water
In a dry position
In a damp place, such as on a damp floor662
GB/T 4798.2--1996
Wet surface
A2.2Biological conditions See Table A3.
Transport conditions
GB/T 4798.2--1996
Areas where the possibility of the growth of molds and fungi is very small, or where the growth of molds and fungi can be prevented
Areas where molds and fungi may grow, and where there are no measures to prevent the growth of molds and fungi
Areas where termites, rodents and their animals pose little harm to the product, and where there are protective measures for animals
Areas where rodents and animals other than termites pose harm, and where there are no protective measures for animals
Areas where animals (including termites) pose harm A2.3
Chemically active substances See Table A4.
Transportation conditions
Indoor, weather-protected
Without weather protection, land transport
Without weather protection, sea transport
Carbon dioxide
Hydrogen sulfide
Nitrogen oxides
Hydrogen chloride
Hydrogen fluoride
Areas with no air pollution or little air pollutionAreas with normal industrial production but no large amount of chemical pollutants discharged
Industrial areas with large amounts of chemical pollutants discharged2B1
Conditions with mold and fungi, etc.
Hazards caused by rodents and other animals
Not including termites
Salt spray conditions
Including termites
Salt water conditions2--1996
08+/S9—
08+/sz-
08+/99-
08+/05-
08+/0s-
08+/92-
2+/92-
GB/T 4798.2-1996
08+/59-
08+/59
mild dry heat
extremely hot
constant humid heat
cold!
sub-humid heat
mild dry heat
extremely hot
constant humid heat
first movement!
cold!
Subhumid heat
GB/T 4798.2—1996
S1+/02+
191+/98+
st+/98+
sI+/09+/S1+/02+S1+/02+
Transportation conditions
Low pressure
Ground transportation and pressurized cabin below 3000m above sea levelGround transportation above 3000m and below 5000m above sea level
No pressurization Pressurized cabin
Air pressure change
No sharp altitude change
In unpressurized cabin, affected by altitude change
There is climate protection inside, not affected by wind. There are wind protection measures outdoors
kPa/min
Open-air transportation, no wind protection measures, except hurricanes. Worldwide climate regions
Solar radiation
No climate protection, but there is solar radiation protection or there is climate protection, Climate regions of the world exposed to solar radiation only from windows
Climate regions of the world exposed to direct solar radiation without climate protection
High-altitude ground transportation without climate protection and direct solar radiation
Heat radiation
No heat source nearby
Heat source nearby
With protection measures
mm/min
Climate regions with normal rainfall intensity without climate protection and rain protection
Climate regions of the world exposed to normal rainfall without climate protection and rain protection
Other water sources
With waterproof measures
Splashing water (splashing from the ground)
Spraying water by spray and jets (such as washing), sea waves on the nails, splashing water
In a dry position
In a damp place, such as on a damp floor662
GB/T 4798.2--1996
Wet surface
A2.2Biological conditions See Table A3.
Transport conditions
GB/T 4798.2--1996
Areas where the possibility of the growth of molds and fungi is very small, or where the growth of molds and fungi can be prevented
Areas where molds and fungi may grow, and where there are no measures to prevent the growth of molds and fungi
Areas where termites, rodents and their animals pose little harm to the product, and where there are protective measures for animals
Areas where rodents and animals other than termites pose harm, and where there are no protective measures for animals
Areas where animals (including termites) pose harm A2.3
Chemically active substances See Table A4.
Transportation conditions
Indoor, weather-protected
Without weather protection, land transport
Without weather protection, sea transport
Carbon dioxide
Hydrogen sulfide
Nitrogen oxides
Hydrogen chloride
Hydrogen fluoride
Areas with no air pollution or little air pollutionAreas with normal industrial production but no large amount of chemical pollutants discharged
Industrial areas with large amounts of chemical pollutants discharged2B1
Conditions with mold and fungi, etc.
Hazards caused by rodents and other animals
Not including termites
Salt spray conditions
Including termites
Salt water conditions2--1996
08+/S9—
08+/sz-
08+/99-
08+/05-
08+/0s-
08+/92-
2+/92-
GB/T 4798.2-1996
08+/59-
08+/59
mild dry heat
extremely hot
constant humid heat
cold!
sub-humid heat
mild dry heat
extremely hot
constant humid heat
first movement!
cold!
Subhumid heat
GB/T 4798.2—1996
S1+/02+
191+/98+
st+/98+
sI+/09+/S1+/02+S1+/02+
Transportation conditions
Low pressure
Ground transportation and pressurized cabin below 3000m above sea levelGround transportation above 3000m and below 5000m above sea level
No pressurization Pressurized cabin
Air pressure change
No sharp altitude change
In unpressurized cabin, affected by altitude change
There is climate protection inside, not affected by wind. There are wind protection measures outdoors
kPa/min
Open-air transportation, no wind protection measures, except hurricanes. Worldwide climate regions
Solar radiation
No climate protection, but there is solar radiation protection or there is climate protection, Climate regions of the world exposed to solar radiation only from windows
Climate regions of the world exposed to direct solar radiation without climate protection
High-altitude ground transportation without climate protection and direct solar radiation
Heat radiation
No heat source nearby
Heat source nearby
With protection measures
mm/min
Climate regions with normal rainfall intensity without climate protection and rain protection
Climate regions of the world exposed to normal rainfall without climate protection and rain protection
Other water sources
With waterproof measures
Splashing water (splashing from the ground)
Spraying water by spray and jets (such as washing), sea waves on the nails, splashing water
In a dry position
In a damp place, such as on a damp floor662
GB/T 4798.2--1996
Wet surface
A2.2Biological conditions See Table A3.
Transport conditions
GB/T 4798.2--1996
Areas where the possibility of the growth of molds and fungi is very small, or where the growth of molds and fungi can be prevented
Areas where molds and fungi may grow, and where there are no measures to prevent the growth of molds and fungi
Areas where termites, rodents and their animals pose little harm to the product, and where there are protective measures for animals
Areas where rodents and animals other than termites pose harm, and where there are no protective measures for animals
Areas where animals (including termites) pose harm A2.3
Chemically active substances See Table A4.
Transportation conditions
Indoor, weather-protected
Without weather protection, land transport
Without weather protection, sea transport
Carbon dioxide
Hydrogen sulfide
Nitrogen oxides
Hydrogen chloride
Hydrogen fluoride
Areas with no air pollution or little air pollutionAreas with normal industrial production but no large amount of chemical pollutants discharged
Industrial areas with large amounts of chemical pollutants discharged2B1
Conditions with mold and fungi, etc.
Hazards caused by rodents and other animals
Not including termites
Salt spray conditions
Including termites
Salt water conditions
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