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Standards GB - Chinese national standards - Page 8643
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 7736-2001
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Ultrasonic inspecting method for macro-structure and imperfection of steel
WITHDRAWN published on 17.12.2001
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GB/T 7736-2008
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Ultrasonic inspecting method for macro-structure and imperfection of steel
WITHDRAWN published on 11.9.2008
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GB 7737-1987
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WITHDRAWN published on 1.1.1987
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GB/T 7737-1997
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Ferroniobium
WITHDRAWN published on 11.11.1997
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GB/T 7738-1987
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Notations for designation of ferroalloys
WITHDRAWN published on 12.5.1987
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GB/T 7739.1-1987
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Methods for chemical analysis of gold concentrates--The fireassaying method for the determination of gold and silver contents
WITHDRAWN published on 12.5.1987
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GB/T 7739.1-2007
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Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents
WITHDRAWN published on 27.4.2007
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GB/T 7739.10-2007
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Methods for chemical analysis of gold concentrates - Part 10Determination of antimony contents
WITHDRAWN published on 27.4.2007
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GB/T 7739.11-2007
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Methods for chemical analysis of gold concentrates—Part 11:Determination of arsenic and bismuth contents
WITHDRAWN published on 29.4.2007
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GB/T 7739.2-1987
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Methods for chemical analysis of gold concentrates--The flame atomic absorption spectrophotometric methods for the determination of silver content
WITHDRAWN published on 12.5.1987
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