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Standards GB - Chinese national standards - Page 7258
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 21379-2008
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Classification and coding of the attribute of traffic management information - City road
WITHDRAWN published on 13.2.2008
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GB 2138-1980
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Determination of aluminum content in tellurium--Chromazurol S-tetradecyl pyridine bromide photometric method
WITHDRAWN published on 1.1.1980
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GB/T 21381-2008
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Coding rules for entity identification code of traffic management geographical information City road
WITHDRAWN published on 13.2.2008
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GB/T 21383-2008
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Coefficient of initial retroreflected luminance of newly applied pavement marking and test method
WITHDRAWN published on 13.2.2008
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GB/T 21384-2008
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Electric water-heater safety valve
WITHDRAWN published on 2.2.2008
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GB/T 21385-2008
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Metal-seated ball valve
WITHDRAWN published on 2.2.2008
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GB/T 21387-2008
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Aaxial flow check valve
WITHDRAWN published on 2.2.2008
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GB 2139-1980
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Determination of lead content in tellurium--Dithizone-carbon tetrachloride extraction photometric method
WITHDRAWN published on 1.1.1980
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GB/T 21391-2008
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Measurement of natural gas flow by turbine meters
WITHDRAWN published on 2.2.2008
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GB/T 21392-2008
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The methods of statistics and analysis of energy consumption in shipping transportation
WITHDRAWN published on 3.2.2008
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