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Standards GB - Chinese national standards - Page 5037
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 5816-1995
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Catalysts and absorbents--Determination of surface area
Standard published on 21.12.1995
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GB/T 5823-2008
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Terminology for building windows and doors
Standard published on 30.7.2008
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GB/T 5824-2021
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Size system of opening for windows and doors in building
Standard published on 9.3.2021
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GB/T 5825-1986
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Symbolic designation of direction of opening and closing and faces of doors and windows
Standard published on 31.1.1986
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GB/T 5825-2026
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Symbolic designation for opening and closing of building doors, windows and curtain walls
Execute Date: december 2026
Standard published on 25.5.2026
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GB/T 5828-2025
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Pure xenon,high purity xenon and ultra pure xenon
Standard published on 29.8.2025
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GB/T 5829-2025
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Pure krypton,high purity krypton and ultra pure krypton
Standard published on 29.8.2025
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GB/T 5831-2011
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Determination of trace oxygen in the gases - Colorimetric method
Standard published on 30.12.2011
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GB/T 5832.1-2016
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Gas analysis—Determination of moisture—Part 1:Electrolytic method
Standard published on 13.12.2016
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GB/T 5832.2-2016
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Gas analysis—Determination of moisture—Part 2:Dew point method
Standard published on 13.12.2016
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