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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
Wind turbines—Asynchronous generatorg—Part 2: Testing methods
Standard published on 13.7.2018
Selected format:Wind turbines—Tower
Standard published on 12.10.2022
Selected format:Wind turbine—Design requirements for gearbox
Standard published on 6.2.2018
Selected format:Industrial fans--Mechanical safety of fans--Guarding
Standard published on 15.4.2003
Selected format:Industrial fans--Vocabulary and definitionsof categories
Standard published on 15.4.2003
Selected format:Fans—Vocabulary and definitions of categories—Part 2:Categories
Standard published on 31.10.2025
Selected format:Specifications for sintered metal materials
Standard published on 9.3.2022
Selected format:Particle size analysis—Laser diffraction methods
Standard published on 26.10.2024
Selected format:Magnesium alloys ingots for castings
Standard published on 29.8.2016
Selected format:Operation conditions and technical requirements for gymnasium and playground - Part 1: Swimming place
Standard published on 10.10.2013
Selected format:Latest update: 2026-09-22 (Number of items: 2 302 417)
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