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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
Test methods for determining the orientation of a semiconductive single crystal
Standard published on 6.8.2023
Selected format:Mulberry silk fabrics
Standard published on 25.4.2016
Selected format:Testing methods and inspection regulations for silk fabrics
Standard published on 11.9.2015
Selected format:Solid waste--Determination of total mercury--Cold atomic absorption spectrometry
Standard published on 28.3.1995
Selected format:Solid waste--Determination of nickel--Dimethylglyoxime spectrophotometric method
Standard published on 28.3.1995
Selected format:Solid waste--Determination offluoride--Ion selective electrode method
Standard published on 28.3.1995
Selected format:Solid waste--Glass electrode test--Method of corrosivity
Standard published on 28.3.1995
Selected format:Solid waste--Determination of arsenic--Silver diethyldithiocarbamate spectrophotometric method
Standard published on 28.3.1995
Selected format:Solid waste--Determination of chromium(VI)--15-Diphenylcarbohydrazide spectrophotometric method
Standard published on 28.3.1995
Selected format:Solid waste--Determination of total chromium--15-Diphenylcarbohydrazide spectrophotometric method
Standard published on 28.3.1995
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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