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Standards GB - Chinese national standards - Page 4660
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 46381-2025
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Low radioactive spherical silica powder for integrated circuit packaging
Standard published on 31.10.2025
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GB/T 46382-2025
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Test methods for conductors for overhead transmission lines
Standard published on 31.10.2025
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GB/T 46383.301-2025
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E-Transporters—Part 3-1: Performance test method for the total run time of an e-scooter with consideration of temperature conditions of actual use
Standard published on 31.10.2025
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GB/T 46383.302-2025
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E-Transporters—Part 3-2: Performance test methods for mobility of cargo e-transporters
Standard published on 31.10.2025
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GB/T 46384.1-2025
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Determination of acidity in electronic gas—Part 1: Fourier transform infrared spectroscopy
Standard published on 31.10.2025
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GB/T 46385.1-2025
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Optical circuit boards—Part 1: General
Standard published on 31.10.2025
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GB/T 46385.2-2025
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Optical circuit boards—Part 2: Basic test and measurement procedures—General guidance for definition of measurement conditions for optical characteristics
Standard published on 31.10.2025
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GB/T 46385.21-2025
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Optical circuit boards—Part 2-1: Basic test and measurement procedures—Optical attenuation and isolation measurements
Standard published on 31.10.2025
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GB/T 46385.22-2025
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Optical circuit boards—Part 2-2Basic test and measurement procedures—Dimensions measurements
Standard published on 31.10.2025
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GB/T 46385.24-2025
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Optical circuit boards—Part 2-4: Basic test and measurement procedures—Optical transmission test for optical circuit boards without input/output fibres
Standard published on 31.10.2025
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