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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Code of practice for conservation of silkworm (Bombyx mori) germplasm resources
Execute Date: october 2026
Standard published on 31.3.2026
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Hive
Execute Date: october 2026
Standard published on 31.3.2026
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Code of practice for breed reproduction of Chinese oak silkwormAntheraea pernyi
Execute Date: october 2026
Standard published on 31.3.2026
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General rules for prevention and control of silkworm diseases and hazards
Execute Date: october 2026
Standard published on 31.3.2026
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Code of practice for conservation and evaluation of Chinese oak silkworm (Antheaea pernyi) germplasm resources
Execute Date: october 2026
Standard published on 31.3.2026
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General technical specification of good agriculture and collection practices for medicinal plant
Execute Date: october 2026
Standard published on 31.3.2026
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Determination of available boron in soil
Execute Date: october 2026
Standard published on 31.3.2026
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Design specification of engineering measure for epidemic prevention of livestock and poultry farms
Execute Date: october 2026
Standard published on 31.3.2026
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Measurement and quantification methods on greenhouse gas emissions from liquid manure of livestock and poultry
Execute Date: october 2026
Standard published on 31.3.2026
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Technical specification for establishment of forage germplasm nursery
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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