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Standards GB - Chinese national standards - Page 8497
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
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GB/T 6436-1992
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Method for the determination of calcium in feedstuffs
WITHDRAWN published on 24.11.1992
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GB/T 6436-2002
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Determination of calcium in feed
WITHDRAWN published on 19.2.2002
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GB/T 6437-1992
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Method for the determination of phosphorus in feedstuffs photometric method
WITHDRAWN published on 24.11.1992
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GB/T 6437-2002
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Determination of phosphorus in feed—Spectphotometry
WITHDRAWN published on 19.2.2002
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GB/T 6438-1992
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Method for the determination of crude ash in feedstuffs
WITHDRAWN published on 24.11.1992
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GB/T 6438-2007
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Animal feeding stuffs - Determination of crude ash
WITHDRAWN published on 21.6.2007
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GB/T 6439-1992
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Method for the determination of water—Soluble chloride in feedstuffs
WITHDRAWN published on 24.11.1992
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GB/T 6439-2007
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Determination of water-soluble chlorides in feeds
WITHDRAWN published on 21.6.2007
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GB/T 644-1993
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Chemical reagent—Potassium hexacyanoferrate ()
WITHDRAWN published on 1.3.1993
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GB/T 6440-1986
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Raw goat skin
WITHDRAWN published on 29.5.1986
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