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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
Determination of moisture and other volatile mater content in feeds
WITHDRAWN published on 12.12.2006
Selected format:Method for the determination of calcium in feedstuffs
WITHDRAWN published on 24.11.1992
Selected format:Determination of calcium in feed
WITHDRAWN published on 19.2.2002
Selected format:Method for the determination of phosphorus in feedstuffs photometric method
WITHDRAWN published on 24.11.1992
Selected format:Determination of phosphorus in feed—Spectphotometry
WITHDRAWN published on 19.2.2002
Selected format:Method for the determination of crude ash in feedstuffs
WITHDRAWN published on 24.11.1992
Selected format:Animal feeding stuffs - Determination of crude ash
WITHDRAWN published on 21.6.2007
Selected format:Method for the determination of water—Soluble chloride in feedstuffs
WITHDRAWN published on 24.11.1992
Selected format:Determination of water-soluble chlorides in feeds
WITHDRAWN published on 21.6.2007
Selected format:Chemical reagent—Potassium hexacyanoferrate ()
WITHDRAWN published on 1.3.1993
Selected format:Latest update: 2026-04-15 (Number of items: 2 272 661)
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