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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
Fluorinated methanes for industrial usesDetermination of purityGas chromatography
Standard published on 23.1.2006
Selected format:Determination of micro-amounts of water in industrial Fluorinated alkane
Standard published on 10.4.2008
Selected format:Series of cycle tyres
Standard published on 7.9.2017
Selected format:Surface active agents - Determination of alkalinity - Titrimetric method
Standard published on 31.12.2012
Selected format:Surface active agents - Determination of stability in hard water
Standard published on 14.1.2011
Selected format:Non-ionic surface active agents—Determination of hydroxyl value
Standard published on 14.12.2020
Selected format:Non-ionic surface active agents - Polyethoxylated derivatives - Iodometric determination of oxyethylene groups
Standard published on 31.12.2012
Selected format:Technical requirements for marine reference electrode
Standard published on 31.8.1999
Selected format:
Technical requirements for marine reference electrode
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Technical requirements for marine auxiliary anode
Standard published on 31.8.1999
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 917)
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