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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
Cathode materials for lithium ion batteries—Determination of water content—Carl fisher coulomb method
Standard published on 28.2.2025
Selected format:ePTFE membrane for reinforcement of proton exchange membrane
Standard published on 28.2.2025
Selected format:Proton exchange membrane for hydrogen production via water electrolysis
Standard published on 28.2.2025
Selected format:Diamond-like carbon films—Determination of friction and wear characteristics of diamond-like carbon films by ball-on-disc method
Standard published on 28.2.2025
Selected format:Smart elderly-oriented technical specification for air conditioners
Standard published on 28.2.2025
Selected format:Determination of the content of attapulgite phase—X-ray diffraction standard curve method
Standard published on 28.2.2025
Selected format:Plastics—Determination of drawing characteristics of thermoplastics in the molten state
Standard published on 28.2.2025
Selected format:Tires intelligent manufacturing—Manufacturing execution system(MES) deployment—General specification
Standard published on 28.2.2025
Selected format:General principle for hot isostatic pressing densification
Standard published on 28.2.2025
Selected format:General technical specification for the titanium alloy parts by hot isostatic pressing
Standard published on 28.2.2025
Selected format:Latest update: 2026-08-31 (Number of items: 2 298 959)
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