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Standards GB - Chinese national standards - Page 5933
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 13738.1-2008
WITHDRAWN
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Black tea—Part 1:Broken black tea
WITHDRAWN published on 4.5.2008
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GB/T 13738.2-1992
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The second set of broken black tea
WITHDRAWN published on 3.11.1992
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GB/T 13738.2-2008
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Black tea—Part 2:Congou black tea
WITHDRAWN published on 12.8.2008
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GB/T 13738.4-1992
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The fourth set of broken black tea
WITHDRAWN published on 3.11.1992
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GB/T 13739-1992
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Testing method of transverse mode of laser radiation
WITHDRAWN published on 4.11.1992
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GB/T 13740-1992
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Testing method of divergence angle of laser radiation
WITHDRAWN published on 4.11.1992
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GB/T 13741-1992
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Testing method of beam diameter of laser radiation
WITHDRAWN published on 4.11.1992
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GB/T 13742-1992
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Optical transer function—accuracy of measurement
WITHDRAWN published on 4.11.1992
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GB/T 13745-1992
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Classification and code of disciplines
WITHDRAWN published on 1.11.1992
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GB 13746-1992
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Safety and hygiene code for working with lead
WITHDRAWN published on 5.11.1992
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