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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
Basic parameters and measuring methods of video heads upper cylinders
Standard published on 6.4.1995
Selected format:Basic parameters and methods of measurement on electronic tuner for receivers for television broadcast transmissions
Standard published on 31.10.2011
Selected format:Earth-moving machinery—Basic types—Identification and vocabulary
Standard published on 30.5.2025
Selected format:Earth-moving machinery--Method for locating the centre of gravity
Standard published on 29.12.1987
Selected format:Square set screws with long dog point
Standard published on 28.12.2018
Selected format:Washers with cone face
Standard published on 6.2.1988
Selected format:Grader - Test methods
Standard published on 26.8.2008
Selected format:Washers with split
Standard published on 6.2.1988
Selected format:Vibratory roller
Standard published on 28.12.2018
Selected format:Square taper washers for I section
Standard published on 6.2.1988
Selected format:Latest update: 2026-04-26 (Number of items: 2 274 794)
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