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Standards GB - Chinese national standards - Page 5724
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 12392-1990
WITHDRAWN
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Method for determination of total ascorbic acid in fruits, vegetables and derived products—Fluorometric method and colorimetric method 2.4-dinitrophenylhydrazine
WITHDRAWN published on 19.3.1990
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GB/T 12393-1990
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Methods for determination of phosphorus in foods
WITHDRAWN published on 19.3.1990
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GB/T 12394-1990
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Method for determination of insoluble dietary fiber in foods
WITHDRAWN published on 19.3.1990
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GB/T 12395-1990
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Method for determination of niacin in foods
WITHDRAWN published on 19.3.1990
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GB/T 12396-1990
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Method for determination of iron, magnesium and manganese in foods
WITHDRAWN published on 19.3.1990
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GB/T 12397-1990
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Method for determination of potassium and sodium in foods
WITHDRAWN published on 19.3.1990
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GB/T 12398-1990
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Methods for determination of calcium in foods
WITHDRAWN published on 19.3.1990
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GB 12399-1990
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Method for determination fo selenium in foods
WITHDRAWN published on 1.1.1990
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GB/T 12399-1996
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Determination of selenium in foods
WITHDRAWN published on 19.6.1996
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GB/T 1240-1976
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Photo-templates gauge
WITHDRAWN published on 31.8.1976
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