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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
Composite wave-serrated metal gaskets for pipe flangesPart 1: PN designated
Standard published on 19.11.2020
Selected format:Composite wave-serrated metal gaskets for pipe flangesPart 2:Class designated
Standard published on 19.11.2020
Selected format:Geometrical Product Specifications(GPS)--Surface texture: Profile method--Measurement standards--Part 1: Material measures
Standard published on 15.4.2003
Selected format:Geometrical Product Specifications(GPS)--Surface texture:Profile method--Measurement standards--Part 2:Software measurement standards
Standard published on 11.11.2004
Selected format:Small wind turbines—Part 1: Technical condition
Standard published on 1.11.2017
Selected format:Small wind turbines—Part 2: Test method
Standard published on 1.11.2017
Selected format:Small wind turbines—Part 3: Wind tunnel test methods
Standard published on 30.8.2019
Selected format:Stall regulation wind turbines—Control system—Technical condition
Standard published on 14.10.2017
Selected format:Stall regulation wind turbines—Control system—Test method
Standard published on 14.10.2017
Selected format:Wind turbines—Asynchronous generator—Part 1: Technical conditions
Standard published on 14.5.2018
Selected format:Latest update: 2026-09-22 (Number of items: 2 302 417)
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