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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
Standard practices for evaluating the hydrothermal resistance of carbon fiber reinforced polymer composites
Standard published on 7.9.2023
Selected format:Standard practices for evaluating the hydrothermal resistance of carbon fiber reinforced polymer composites
Standard published on 7.9.2023
Selected format:Hard carbon
Standard published on 7.9.2023
Selected format:Metallic materials—Sheet and strip—Shear test method at room temperature
Standard published on 7.9.2023
Selected format:Fibre-reinforced plastic composites—Standard qualification plan (SQP) for composite materials,including reduced qualification plan (RQP) and extended qualification plan (EQP) schemes
Standard published on 7.9.2023
Selected format:Glass-reinforced thermosetting plastics(GRP)pipes—Determination of the ring creep properties under wet or dry conditions
Standard published on 7.9.2023
Selected format:Corrosion of metals and alloys—Test method for high temperature corrosion testing of metallic materials by application of a deposit of salt,ash,or other substances
Standard published on 7.9.2023
Selected format:Technical requirements for construction of closed test site for automatic driving
Standard published on 7.9.2023
Selected format:Code of practice of sea trial for manned submersible
Standard published on 7.9.2023
Selected format:Ships and marine technology—Aquatic nuisance species—Part 1: Ballast water discharge sample port
Standard published on 7.9.2023
Selected format:Latest update: 2026-09-17 (Number of items: 2 301 467)
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