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Standards GB - Chinese national standards - Page 7415
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 292-2007
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Rolling bearings—Angular contact ball bearings—Boundary dimensions
WITHDRAWN published on 28.2.2007
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GB 2920-1982
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Specification for polycarbonate resins by melt method
WITHDRAWN published on 1.1.1982
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GB 29201-2012
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Food additives ammonia
WITHDRAWN published on 25.12.2012
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GB/T 2921-1982
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Chemical reagents—Classification and nomenclature of liquid stationary phase for gas chromatography
WITHDRAWN published on 3.3.1982
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GB 29219-2012
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Food additive sorbitol
WITHDRAWN published on 25.12.2012
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GB/T 2922-1982
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Chemical reagents—Determination of specific surface area of solid supports used in chromatography
WITHDRAWN published on 3.3.1982
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GB 29224-2012
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National food safety standards -- Food additives -- Ethyl acetate
WITHDRAWN published on 25.12.2012
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GB 2923-1982
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Methods for determination of speed of black-and-white photographic negative materials for still and motion-picture photography
WITHDRAWN published on 1.1.1982
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GB/T 29239-2012
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Energy efficiency metrics and measurement method for mobile communication equipment—Base station
WITHDRAWN published on 31.12.2012
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GB/T 29239-2020
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Energy efficiency metrics and measurement method for mobile communication equipment—Base station
WITHDRAWN published on 14.12.2020
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