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Standards GB - Chinese national standards - Page 5334
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 9138-2015
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Rebound test hammer
Standard published on 15.5.2015
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GB/T 9139-2018
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Earth-moving machinery—Hydraulic excavators—Technical specifications
Standard published on 17.9.2018
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GB/T 9142-2021
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Building construction machinery and equipment—Concrete mixer
Standard published on 11.10.2021
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GB/T 9143-2021
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Commercial coal quality—Coal for fixed-bed gasification
Standard published on 31.12.2021
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GB/T 9144-2025
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General purpose metric screw threads—Preferable plan
Standard published on 30.5.2025
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GB/T 9145-2003
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General purpose metric screw threads--Limits of sizes for the screw threads of medium quality and preferable plan
Standard published on 22.5.2003
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GB/T 9146-2003
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General purpose metric screw threads--Limits of sizes for the screw threads of coarse quality and preferable plan
Standard published on 22.5.2003
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GB/T 9149-2008
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General specification for magnetic particle clutch
Standard published on 27.9.2008
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GB/T 915-2010
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Bismuth
Standard published on 14.1.2011
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GB/T 9151-2023
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Terms of drilling engineering
Standard published on 7.9.2023
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