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Standards GB - Chinese national standards - Page 5712
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 12496.4-1990
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Test method of wooden activated carbon--Adsorption of zinc acetate
WITHDRAWN published on 1.1.1990
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GB/T 12496.5-1990
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Test method of wooden activated carbon--Adsorption of phenol
WITHDRAWN published on 1.1.1990
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GB/T 12496.6-1990
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Test method of wooden activated carbon--Adsorption of quinine sulphate
WITHDRAWN published on 1.1.1990
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GB/T 12496.7-1990
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Test method of wooden activated carbon--Iodine number
WITHDRAWN published on 1.1.1990
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GB/T 12496.8-1990
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Test method of wooden activated carbon--Iron content
WITHDRAWN published on 1.1.1990
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GB/T 12496.8-1999
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Test methods of wooden activated carbon—Determination of oidine number
WITHDRAWN published on 10.11.1999
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GB/T 12496.9-1990
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Test method of wooden activated carbon--Chloride content
WITHDRAWN published on 1.1.1990
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GB/T 12496.9-1999
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Test methods of wooden activated carbon—Determination of decolorization of caramel
WITHDRAWN published on 10.11.1999
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GB 12497-1995
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Three-phase induction motor energy-saving operation
WITHDRAWN published on 23.2.1995
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GB/T 12498-1990
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Generic specification of rubidium frequency standards
WITHDRAWN published on 30.8.1990
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