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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
Non-ferrous metals atmospheric corrosion testing method
WITHDRAWN published on 31.3.1989
Selected format:Analytical method for impurities in the synthetic quartz crystal
WITHDRAWN published on 31.3.1989
Selected format:Method for detecting dislocations of synthetic quartz using X-ray topographic technique
WITHDRAWN published on 31.3.1989
Selected format:Low density polyethylene resin
WITHDRAWN published on 31.3.1989
Selected format:High density polyethylene resin
WITHDRAWN published on 31.3.1989
Selected format:Knock test reference fuels—Reference fuel—iso-Octane
WITHDRAWN published on 31.3.1989
Selected format:Knock test reference fuels—Reference fuel—n-Heptane
WITHDRAWN published on 31.3.1989
Selected format:Knock test reference fuels—Reference fuel grade toluene
WITHDRAWN published on 31.3.1989
Selected format:Hydraulic oils L-HL
WITHDRAWN published on 1.1.1989
Selected format:Hydraulic fluids of mineral oil type and synthetic hydrocarbon type
WITHDRAWN published on 7.4.1994
Selected format:Latest update: 2026-04-01 (Number of items: 2 270 267)
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