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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
Primary chemical - Sodium carbonate anhydrous
Standard published on 18.6.2008
Selected format:Working chemical - Potassium chloride
Standard published on 18.6.2008
Selected format:Working chemical - General rules for assay - Weight titrationpotentiometric method
Standard published on 2.2.2007
Selected format:Working chemical - General rules for assay - weight titration
Standard published on 2.2.2007
Selected format:Paper,board and pulps—Standard atmosphere for conditioning and testing
Standard published on 28.12.2023
Selected format:Pulp--Estimation of dirt and shives
Standard published on 15.10.2002
Selected format:Pulps - Determination of alcohol-benzene solubles
Standard published on 19.8.2008
Selected format:Raw fiber material - Determination of pectin content
Standard published on 19.8.2008
Selected format:Marine steel butt-welding fittings
Standard published on 10.6.2005
Selected format:Terminology of postal industry
Standard published on 16.6.2011
Selected format:Latest update: 2025-08-21 (Number of items: 2 213 168)
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