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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
Drawing for metal hull of ships - Part 2Graphical symbols
Standard published on 30.7.2008
Selected format:Drawings for metal hull of ships - Part 3: Presentation and coding of drawings
Standard published on 20.10.2008
Selected format:Drawing for metal hull of ships - Part 4Dimensioning
Standard published on 4.8.2008
Selected format:Method of ultrasonic inspection for zirconium and zirconium alloy tubes
Standard published on 26.10.2024
Selected format:Technical requirements for energy conservation of ceramic industry kilns
Standard published on 26.10.2024
Selected format:Lanthanum chloride
Standard published on 26.10.2024
Selected format:Anhydrous neodymium chloride
Standard published on 26.10.2024
Selected format:Petroleum, petrochemical and natural gas industries—Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments
Standard published on 26.10.2024
Selected format:Systems interface between customer energy management system and the power management system—Part 3: Architecture
Standard published on 26.10.2024
Selected format:Microwave circuits—Measuring methods for limiter
Standard published on 26.10.2024
Selected format:Latest update: 2026-09-04 (Number of items: 2 300 131)
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