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Standards GB - Chinese national standards - Page 605
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 16422.1-2019
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Plastics—Methods of exposure to laboratory light sources—Part 1:General guidance
Standard published on 10.12.2019
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GB/T 16422.2-2022
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Plastics—Methods of exposure to laboratory light sources—Part 2: Xenon-arc lamps
Standard published on 15.4.2022
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GB/T 16422.3-2022
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Plastics—Methods of exposure to laboratory light sources—Part 3: Fluorescent UV lamps
Standard published on 15.4.2022
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GB/T 16422.4-2022
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Plastics—Methods of exposure to laboratory light sources—Part 4: Open-flame carbon-arc lamps
Standard published on 15.4.2022
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GB 16423-2020
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Safety regulation for metal and nonmetal mines
Standard published on 11.10.2020
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GB/T 16425-2018
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Determination for minimum explosive concentration of dust clouds
Standard published on 28.12.2018
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GB/T 16425-2025
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Risk assessment and characteristic parameter determination methods of combustible dust explosion
Execute Date: january 2027
Standard published on 2.12.2025
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GB/T 16426-1996
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Determination for maximumexplosion pressure and maximum rate of pressure rise of dust cloud
Standard published on 4.6.1996
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GB/T 16427-2018
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Determination for electrical resistivity of dust layers
Standard published on 28.12.2018
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GB/T 16428-1996
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Determination of the minimum ignition energy of dust cloud
Standard published on 4.6.1996
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