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Standards GB - Chinese national standards - Page 6904
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 21346-2008
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The norm of energy consumption per unit product of electrolyzed aluminum enterprise
WITHDRAWN published on 9.1.2008
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GB 21346-2013
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The norm of energy consumption per unit products of aluminum metallurgical enterprise
WITHDRAWN published on 18.12.2013
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GB 21347-2008
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The norm of energy consumption per unit product of magnesium metallurgical enterprise
WITHDRAWN published on 9.1.2008
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GB 21347-2012
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The norm of energy consumption per unit products of magnesium metallurgical enterprise
WITHDRAWN published on 31.12.2012
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GB 21348-2008
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The norm of energy consumption per unit product of tin metallurgical enterprise
WITHDRAWN published on 9.1.2008
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GB 21348-2014
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The norm of energy consumption per unit product of tin metallurgical enterprise
WITHDRAWN published on 28.4.2014
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GB 21349-2008
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The norm of energy consumption per unit product of antimony metallurgical enterprise
WITHDRAWN published on 9.1.2008
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GB 21349-2014
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The norm of energy consumption per unit product of antimony metallurgical enterprise
WITHDRAWN published on 28.4.2014
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GB/T 2135-1980
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Determination of tin content in cadmium--Phenylfluorone-CTAB photometric method
WITHDRAWN published on 19.12.1980
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GB 21350-2008
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The norm of energy consumption per unit product of copper and copper-alloy tube
WITHDRAWN published on 9.1.2008
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