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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
Evaluation method on cast surface roughness
WITHDRAWN published on 3.5.1994
Selected format:Reference gasoline(leaded regular)
WITHDRAWN published on 5.5.1994
Selected format:Method for determination of total manganese content in manganese ores
WITHDRAWN published on 28.2.1979
Selected format:Manganese ores—Determination of manganese content—Potentiometric method and ammonium iron (II) sulphate titrimetric method
WITHDRAWN published on 11.9.2002
Selected format:Fire extinguishing agent- Ammonium phosphate dry chemical
WITHDRAWN published on 1.1.1994
Selected format:Fire extinguishing agent—Ammonium phosphate dry chemical
WITHDRAWN published on 10.1.2002
Selected format:Heat-resisting superalloy tube for general application
WITHDRAWN published on 4.4.1994
Selected format:Superalloy tube for general application
WITHDRAWN published on 13.5.2008
Selected format:Compound fertilizer
WITHDRAWN published on 1.1.1994
Selected format:Compound fertilizer(Complex fertilizer)
WITHDRAWN published on 26.7.2001
Selected format:Latest update: 2026-04-27 (Number of items: 2 274 955)
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