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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
Basic dimensions of narrow frame used for telecommunication equipment
WITHDRAWN published on 27.5.1986
Selected format:Method for the determination of crude protein in feedstuffs
WITHDRAWN published on 1.1.1986
Selected format:Method for the determination of crude protein in feedstuffs
WITHDRAWN published on 18.7.1994
Selected format:Method for the determination of crude fat in feedstuffs
WITHDRAWN published on 1.1.1986
Selected format:Method for the determination of crude fat in feedstuffs
WITHDRAWN published on 18.7.1994
Selected format:Determination of crude fat in feeds
WITHDRAWN published on 9.6.2006
Selected format:Method for the determination of crude fiber in feedstuffs
WITHDRAWN published on 1.1.1986
Selected format:Method for determination of crude fiber in feedstuffs
WITHDRAWN published on 18.7.1994
Selected format:Feeding stuffs—Determination of crude fiber content—Method with intermediate filtration
WITHDRAWN published on 3.8.2006
Selected format:Method for the determination of moisture in feedstuffs
WITHDRAWN published on 29.5.1986
Selected format:Latest update: 2026-04-15 (Number of items: 2 272 661)
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