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Standards GB - Chinese national standards - Page 188
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 12379-1990
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Regulations of monitoring for environmental nuclearradiations
Standard published on 9.6.1990
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GB/T 12385-2025
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Standard test methods for sealability of gaskets for pipe flanges
Standard published on 28.3.2025
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GB/T 1239.1-2009
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Cold coiled helical springs technical specifications--Part 1:Extension spring
Standard published on 16.3.2009
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GB/T 1239.2-2009
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Cold coiled helical springs technical specifications--Part 2:Compressions spring
Standard published on 16.3.2009
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GB/T 1239.3-2009
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Cold coiled helical springs technical specifiations - Part 3: Torsion spring
Standard published on 16.3.2009
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GBJ 124-1988
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terms of road construction
Standard published on 31.3.1988
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GB/T 12401-1990
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Specificationof antenna (including feed network) and servo system used in domestic satellitecommunication earth stations
Standard published on 5.7.1990
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GB/T 12402-2000
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Classification and code for economic categories
Standard published on 14.7.2000
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GB/T 12403-1990
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Names and codes for the officials positions
Standard published on 5.7.1990
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