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Standards GB - Chinese national standards - Page 197
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 12496.4-1999
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Test methods of wooden activated carbon--Determination of moisture content
Standard published on 10.11.1999
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GB/T 12496.5-1999
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Test methods of wooden activated carbon--Determination of carbon tetrechloride activity
Standard published on 10.11.1990
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GB/T 12496.6-1999
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Test methods of wooden activated carbon--Determination of abrasion resistance
Standard published on 10.11.1999
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GB/T 12496.7-1999
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Test methods of wooden activated carbon--Determination of pH
Standard published on 10.11.1999
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GB/T 12496.8-2015
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Test methods of wooden activated carbon—Determination of iodine number
Standard published on 3.7.2015
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GB/T 12496.9-2015
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Test methods of wooden activated carbon—Determination of decolorization of caramel
Standard published on 3.7.2015
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GB/T 12497-2006
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Three-phase induction motor""s economic operation
Standard published on 18.7.2006
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GB/T 12498-2012
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Generic specification of rubidium frequency standard
Standard published on 31.12.2012
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GB/T 12500-2008
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Information technology - Open systems interconnection - Protocol for providing the connection-mode transport service
Standard published on 16.7.2008
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GB/T 12506-2017
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General specification for wind-finding radar
Standard published on 31.7.2017
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