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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
Spherical alumina powder for integrated circuit packaging
Standard published on 31.10.2025
Selected format:Bismaleimide triazine (BT) base material for integrated circuit (IC) package
Standard published on 31.10.2025
Selected format:Picture image area and photographic sound record on 35mm motion-picture release prints--Position and dimensions
Standard published on 28.6.1997
Selected format:Electronic-grade N-Methyl-2-Pyrrolidone
Standard published on 31.10.2025
Selected format:Low radioactive spherical silica powder for integrated circuit packaging
Standard published on 31.10.2025
Selected format:Test methods for conductors for overhead transmission lines
Standard published on 31.10.2025
Selected format: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
Selected format:E-Transporters—Part 3-2: Performance test methods for mobility of cargo e-transporters
Standard published on 31.10.2025
Selected format:Determination of acidity in electronic gas—Part 1: Fourier transform infrared spectroscopy
Standard published on 31.10.2025
Selected format:Optical circuit boards—Part 1: General
Standard published on 31.10.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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