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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
Technical specification for He-Ne lasers
Standard published on 23.8.2024
Selected format:Insulating materials—Test methods for electric strength—Part 1: Test at power frequencies
Standard published on 13.12.2016
Selected format:Insulating materials—Test methods for electric strength—Part 2: Additional requirements for tests using direct voltage
Standard published on 13.12.2016
Selected format:Insulating materials—Test methods for electric strength—Part 3: Additional requirements for 1.2/50 s impulse tests
Standard published on 13.12.2016
Selected format:General specification of head stack assembly for hard disk drive
Standard published on 14.1.2011
Selected format:General specification of keyboard for information processing
Standard published on 14.1.2011
Selected format:Information processing systems--Computer system configuration diagram symbols and conventions
Standard published on 7.1.1993
Selected format:Safety valves for marine air vessel
Standard published on 9.8.2010
Selected format:Marine halon fire extinguishing system
Standard published on 31.12.2021
Selected format:Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including meter wavelengths
Standard published on 15.2.2006
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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