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Standards GB - Chinese national standards - Page 138
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 118-2000
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Taper pins with internal thread
Standard published on 26.9.2000
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GB/T 11800-2008
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Marine explosion-proof type axial flow fans
Standard published on 3.3.2008
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GB/T 11803-1989
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Marine A.C. low voltage switchboard--Construction and basic dimension
Standard published on 3.11.1989
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GB/T 11803-2025
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Marine A.C. low voltage switchboard
Execute Date: february 2026
Standard published on 1.8.2025
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GB/T 11804-2005
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Environmental conditions for electric and electronic products-Terminologies
Standard published on 3.3.2005
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GB/T 11805-2019
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General specifications of automatic control components (devices) and their related system for hydroturbine-generating sets
Standard published on 4.6.2019
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GB 11806-2019
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Regulations for the safe transport of radioactive material
Standard published on 4.4.2019
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GB/T 11807-2021
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Characteristicsdesign and operational procedures for acoustic monitoring systems of loose parts detection important to safety in nuclear power plants
Standard published on 31.12.2021
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GB/T 11809-2021
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Test method of weld of fuel rod for PWR—Metallographic examination and radiographic testing
Standard published on 11.10.2021
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GB/T 1181-1998
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The interference-fit threads
Standard published on 28.8.1998
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