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Standards GB - Chinese national standards - Page 224
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 12731-2014
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Fire-resistant V-belts
Standard published on 3.9.2014
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GB/T 12732-2008
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Automotive V-belts
Standard published on 1.4.2008
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GB/T 12734-2017
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Synchronous belt drives—Automotive synchronous belts
Standard published on 1.11.2017
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GB/T 12735-2014
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Belt drivesV-belts for the agricultural machineryFatigue test
Standard published on 6.5.2014
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GB/T 12736-2021
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Conveyor belts—Determination of strenght of mechanical fastenings—Static test method
Standard published on 9.3.2021
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GB/T 12737-2008
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Chemical products for industrial use-General method for determination of traces of sulphur compounds, as sulphate, by reduction and titrimetry
Standard published on 1.4.2008
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GB/T 12738-2025
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Ropeway—Terminology
Standard published on 29.8.2025
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GB/T 1274-2011
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Chemical reagent - Potassium dihydrogen phosphate
Standard published on 12.5.2011
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GB/T 12742-1991
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The specifications of testing equipment and measuring appliance for bicycle
Standard published on 21.3.1991
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GB 12743-2003
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Plant quarantine rules for soybean seeds in producing areas
Standard published on 2.6.2003
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