GB 4797.3-1986 Natural environmental conditions for electrical and electronic products

This standard specifies the biological environmental conditions that are harmful to electrical and electronic products under natural environmental conditions, and divides the regions accordingly. This standard is the basic document for the biological environmental conditions related to the design, manufacture, packaging, transportation, storage and use of electrical and electronic products. The harmful organisms mentioned in this standard mainly refer to molds, insects and animals. GB 4797.3-1986 Biological Environment Conditions for Electrical and Electronic Products GB4797.3-1986 Standard Download Decompression Password: www.bzxz.net

National Standard of the People's Republic of China
Environmental conditions for electric and electronic products appearing in natureLiving organisms
UDC 621.$ :620
.198.8
GB 4797.3—6
This standard specifies the biological environmental conditions that are harmful to electric and electronic products under natural environmental conditions, and divides the regions accordingly. 1 Scope of application
1.1 This standard is the basic document for the biological environmental conditions related to the design, manufacture, packaging, transportation, storage and use of electric and electronic products.
1.2 The harmful organisms mentioned in this standard mainly refer to poisonous fungi, insects and animals. 2 Species and distribution of hazardous organisms
2.1 Fungi
2.1.1 Fungi can cause harm to electrical and electronic products under environmental conditions of temperature between 18℃ and 37℃ and relative humidity above 60%. 2.1.2 Main harmful fungi
Aspergillus anseri
Aspergillus sassafras
Aspergillus pyrophorus
Ochre-green
Current green
Yellow green
Pre-green
Arctic green capsule
Penicillium funiculum
Short dense green
Paecilomyces varanus
Budding Zhilin
Clodrama waxyii
Green raspberry
Alternaria interspersed
National Bureau of Standards 1986-1122 issued
1987 10-01 Implementation
Chaetomium globosum
Rhizopus nigromaculus
2.1.3 Hazardous areas
GB 4797.3-86
Harbin, Changchun, Shenyang, Beijing, Tianjin, Shijiazhuang, Zhengzhou, Xi'an, Lanzhou, Shandong, Jiangsu, Zhejiang, Anhui, Shanghai, Hubei, Sichuan, Yunnan, Guizhou, Hunan, Jiangxi, Guangdong, Guangxi, Fujian and Taiwan. 2.2 Insects
2.2.1 The harmful insects involved in this standard will corrode electrical and electronic products during their life activities, causing damage to the products.
2.2.2 Major harmful insects
Termites, ants, epilepsy, wood bees, beetles, longhorn beetle larvae, beetle larvae, clothes moths. 2.2.3 Endangered areas
Guangdong, Guangxi, Fujian, Yunnan, Sichuan, Guizhou, Hunan, Hubei, Zhejiang, Shanghai, Jiangsu, Shandong and Taiwan. 2.3 Animals
2.3.1 The harmful animals covered by this standard will cause damage to electrical and electronic products during their life activities. 2.3.2 Major harmful birds
Crows, magpies, sparrows.
2.3.3 Endangered areas of harmful birds
Hunan, Jiangxi, Henan, Heilongjiang, etc. 2.3.4 Major harmful rodents
Apodemus agrarius
Plain-toothed rat
Prairie ground squirrel
Black-striped hamster
Brandt's clawed gerbil
Brandt's vole
Mus musculus
Sinian rat
Plateau pika
Flavopectoralis rat
Yellow-haired rat
Brown family relic
Chinese bamboo rat
2.3.5 Harmful rodents' harming areas
All over the country
8 Principles for the division of biological environmental conditions
3.1 According to the atmospheric temperature and humidity conditions.
3.2 According to the degree of harm of organisms to electronic products. 3.3 Regional division is carried out according to ground environmental conditions and the distribution of harmful animals. 4 Division of biological environmental conditions regions
According to the division principle in Chapter 3 of this standard, the whole country is divided into four regions (see the biological environmental conditions region map). 4.1 Bi region
GB4797.386
4.1.1 Scope
From the north of Ergun River, Hailar, Yanglinhot, Hohhot, Yulin, Wuzhong, Lanzhou, Xining, Lvdu, Nyingchi, and the area north of Yarlung Zangbo River (see the "Biological Environmental Conditions Region Map"). 4.1.2 Environmental conditions
4.1.2.1 The climatic conditions in this region are complex. Although it is a southern temperate zone, a small temperate zone or a plateau climate zone, most of them are dry cover areas. 4.1.2.2 This region is only damaged by rodents.
4.2.1 Scope
From the west of Fujin, Harbin, Changchun, Shenyang, Liaoyang, Qinhuangdao, Beijing, Shijiazhuang, Zhengzhou, Xi'an, Zhaiji, Tianshui, Wudu, Ma'erkang, Kangding, Deqin in the east, and the area south of District B (see "Biological Environmental Conditions Regional Map"). 4.3B3 Zone
4.3.1 Scope
From the east of Lianyungang, Jingjiang, Nanjing, Lu'an, Wuhan, Yichang, Wanxian, Nanchong, Mianyang, Ya'an, Xichang, Dukou, Tengchong and the north of GB4797.3-86
, and the area south of Zone B (see "Biological Environmental Conditions Regional Map\). 4.3.2 Environmental Conditions
4.3.2.1 The monthly average relative humidity is greater than or equal to 70% throughout the year, and the monthly average temperature is greater than or equal to 18°C ​​for 3 to 4 months.
4.3.2.2 The annual average relative humidity is greater than 60%, and the annual average temperature is 10° to 15°C. 4.3.2.3 Biological activities in this area are relatively frequent, and there are hazards from major organisms such as mold, rodents, ants, and birds. 4.4 Zone B
4.4.1 Scope
Area south of Zone B (see “Biological Environmental Conditions Regional Map”) 4.4.2 Environmental ConditionswwW.bzxz.Net
4.4.2.1 The average monthly relative humidity is greater than or equal to 70% and the average monthly temperature is greater than or equal to 18°C ​​for more than five months.
4.4.2.2 The relative humidity is above 70% for 10 months throughout the year. 4.4.2.3 The plum rain season lasts for 2 to 3 months each year. 4.4.2.4 Biological activities are frequent in this area, and there are various biological hazards. Additional Notes:
This standard was proposed by the National Technical Committee for Standardization of Environmental Conditions and Tests for Electrical and Electronic Products. This standard was drafted by the Natural Environmental Conditions for Electrical and Electronic Products: Biological Working Group
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