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Standards GB - Chinese national standards - Page 5078
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 6219-1998
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Semiconductor devices--Discrete devices--Part 8:Field-effect transistors--Section One:Blank detail specification for single-gate field-effect transistors up to 5W and 1GHz
Standard published on 17.11.1998
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GB/T 622-2006
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Chemical reagent - Hydrochloric acid
Standard published on 3.11.2006
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GB 6220-2009
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Respiratory protection - Long tube breathing apparatus
Standard published on 13.4.2009
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GB 6220-2023
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Respiratory protection—Air line respirator
Standard published on 28.12.2023
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GB 6222-2025
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Safety specification for gas of industrial enterprises
Standard published on 31.10.2025
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GB 6227.1-2010
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The national food safety standards of food additives Sunset Yellow
Standard published on 21.12.2010
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GB/T 6229-2007
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Test methods for walking tractors
Standard published on 25.6.2007
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GB/T 623-2024
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Chemical reagent—Perchloric acid
Standard published on 29.9.2024
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GB/T 6232-2021
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Tractors and machinery for agriculture and forestry—Wheel-to-hub fixing dimensions
Standard published on 30.4.2021
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GB/T 6235-2004
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Agricultural tractors--Operator’s seating accommodation--Dimensions
Standard published on 24.3.2004
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