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Standards GB - Chinese national standards - Page 8692
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 6048-1985
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Digital quartz watches
WITHDRAWN published on 1.1.1985
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GB 6049-1985
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Testing methods for the digital quartz watches
WITHDRAWN published on 1.1.1985
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GB/T 605-1988
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Chemical reagent—General method for the measurement of colour(in Hazen units)
WITHDRAWN published on 5.9.1988
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GB 6050-1985
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Digital quartz stop watches
WITHDRAWN published on 1.1.1985
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GB 6052-1985
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WITHDRAWN published on 1.1.1985
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GB/T 6052-1993
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Commerial liquid carbon dioxide
WITHDRAWN published on 26.8.1993
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GB/T 6052-2011
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Industrial liquid carbon dioxide
WITHDRAWN published on 30.12.2011
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GB 6053-1985
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The methods for the measurement and calculation of heat balance, heat efficiency of annular kilne
WITHDRAWN published on 1.1.1985
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GB 6054-1985
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The methods for the measurement and calculation of heat balance, heat efficiency of tunnel dryer
WITHDRAWN published on 1.1.1985
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GB 6055-1985
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The methods for the calculation of the efficiency, unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
WITHDRAWN published on 1.1.1985
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