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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
Bluntnose black bream—Broodstock,fry and fingerling
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Air-bag type sequential external counter-pulsation device
Standard published on 29.12.2017
Selected format:Air-bag type sequential external counter-pulsation device
Standard published on 29.12.2017
Selected format:Clutch vocabulary
Standard published on 28.2.2017
Selected format:Clutch classification
Standard published on 28.2.2017
Selected format:Welding electrodes and rods for cast iron
Standard published on 16.2.2006
Selected format:Covered electrodes, wires, rods and tubular cored electrodes for fusion welding of cast iron
Standard published on 12.10.2022
Selected format:Tubular cored electrodes for non-alloy and fine grain steels
Standard published on 14.5.2018
Selected format:Silver brazing filler metals
Standard published on 14.5.2018
Selected format:Optics and optical instruments - Reference wavelengths
Standard published on 30.9.2009
Selected format:Latest update: 2026-08-25 (Number of items: 2 298 362)
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