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Standards GB - Chinese national standards - Page 351
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 14055.1-2008
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Reference neutron radiations - Part 1: Characteristics and methods of production
Standard published on 18.7.2008
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GB/T 14055.2-2012
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Reference neutron radiations - Part 2: Calibration fundamentals of radiation protection devices related to the basic quantities characterizing the radiation field
Standard published on 29.6.2012
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GB/T 14056.1-2008
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Evaluation of surface contamination - Part 1: Beta-emitters (maximum beta energy greater than 0.15 MeVand alpha emitters
Standard published on 2.7.2008
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GB/T 14056.2-2011
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Evaluation of surface contamination - Part 2Tritium surface contamination
Standard published on 16.6.2011
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GB/T 14057.1-2008
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Decontamination of radioactively contaminated surfaces - Part 1: Method for testing and assessing the ease of decontamination
Standard published on 2.7.2008
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GB/T 14057.2-2011
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Decontamination of radioactively contaminated surface - Part 2Testing method of decontamination agents for textiles
Standard published on 16.6.2011
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GB/T 14058-2023
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Apparatus for gamma radiography
Standard published on 17.3.2023
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GB/T 1406.1-2008
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Types and dimensions of lamp caps - Part 1Screw caps
Standard published on 29.4.2008
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GB/T 1406.2-2008
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Types and dimentions of lamp caps - Part 2Pin lamp caps
Standard published on 29.4.2008
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GB/T 1406.3-2025
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Types and dimensions of lamp caps—Part 3Prefocus caps
Standard published on 28.2.2025
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