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Standards GB - Chinese national standards - Page 9017
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 7380-1995
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Surface active agents and detergents—Determination of water content—Karl Fischer method
WITHDRAWN published on 20.12.1995
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GB 7381-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7381-1993
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Surface active agents—Determination of stability in hard water
WITHDRAWN published on 6.8.1993
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GB 7382-1987
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Surface active agents--Determination of the power to disperse calcium soap--Acidimetric method (Modified Schonfeldt method)
WITHDRAWN published on 1.1.1987
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GB 7383-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7383-1997
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Non-ionic surface active agents—Polyalkoxylated derivatives—Determination of hydroxyl value—Phthalic anhydride method
WITHDRAWN published on 14.10.1997
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GB/T 7383-2007
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Non-ionic surface active agents—Determination of hydroxyl value
WITHDRAWN published on 13.8.2007
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GB 7384-1987
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Non-ionic surface active agents--Polyethoxylated derivatives--Determination of hydroxyl value--Acetic anhydride method
WITHDRAWN published on 1.1.1987
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GB/T 7384-1996
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Non-ionic surface active agents—Polyethoxylated derivatives—Determination of hydroxyl value—Acetic anhydride method
WITHDRAWN published on 22.8.1996
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GB 7385-1987
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Surface active agents--Ethylene oxide adducts--Iodometric determination of oxyethylene groups
WITHDRAWN published on 1.1.1987
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