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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
Inspection of grain and oils - Determination of type purity and their mixture
Standard published on 4.11.2008
Selected format:Inspection of grain and oils—Determination of foreign matter and unsound kernels of grain and oilseeds
Standard published on 10.5.2019
Selected format:Inspection of grain and oils—Determination of impurities and defective kernels in grains and oilseeds
Standard published on 28.1.2026
Selected format:Inspection of grain and oils - Determination of husked rice yield from paddy
Standard published on 4.11.2008
Selected format:Inspection of grain and oilseeds--Methods for determination of yellow-coloured rice and cracked kernels
Standard published on 2.11.1985
Selected format:Inspection of grain and oils—Determination of yellow-colored rice and cracked kernels
Standard published on 28.1.2026
Selected format:Inspection of grain and oils—Determination of moisture content of grain and oilseeds
Standard published on 31.12.2025
Selected format:Inspection of grain and oils - Determination of test weight
Standard published on 12.11.2013
Selected format:Inspection of grain and oils—Determination of pure kernel yield of unhulled oilseeds
Standard published on 31.10.2025
Selected format:Inspection of grain and oils - Determination of sound matter yield of sweet potato flakes
Standard published on 4.11.2008
Selected format:Latest update: 2026-08-14 (Number of items: 2 293 479)
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