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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
Compliance test procedures for steady-state availab-ility
Standard published on 24.7.1995
Selected format:Methods of measurement for glow discharge display tubes
Standard published on 24.7.1995
Selected format:Blank detail specification for semiconductor laser diodes
Standard published on 24.7.1995
Selected format:Gib head taper keys
Standard published on 29.4.2003
Selected format:Semiconductor devices--Discrete devices and integrated circuits--Part 5:Optoelectronic devices
Standard published on 24.7.1995
Selected format:Semiconductor devices—Part 5-13:Optoelectronic devices—Hydrogen sulphide corrosion test for LED packages
Standard published on 27.2.2026
Selected format:Discrete semiconductor devices and integrated circuits--Part 5-2:Optoelectronic devices--Essential ratings and characteristics
Standard published on 24.11.2003
Selected format:-
Standard published on 24.11.2003
Selected format:Discrete semiconductor devices and integrated circuits--Part 5-3:Optoelectronic devices--Measuring methods
Standard published on 24.11.2003
Selected format:Semiconductor devices—Discrete devices—Part 5-4:Optoelectronic devices—Semiconductor lasers
Standard published on 31.5.2017
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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