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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 method for carbonizable substances in paraffin wax
Standard published on 5.10.2025
Selected format:p-Anisidine
Standard published on 15.5.2015
Selected format:Trichloromonofluoromethane for industrial uses
Standard published on 9.3.1987
Selected format:Dichlorodifluoromethane for industrial uses
Standard published on 9.3.1987
Selected format:Monochlorodifluoro methane for industrial uses
Standard published on 1.9.2006
Selected format: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:Latest update: 2026-11-09 (Number of items: 2 209 259)
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