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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
Chemical reagent - General method for the determination of heavy metals
Standard published on 15.5.2008
Selected format:Chemical reagent - General method for the determination of acidity and alkalinity
Standard published on 15.5.2008
Selected format:Chemical reagent - General rules for the determination of readily carbonizable substances
Standard published on 15.5.2008
Selected format:Chemical reagent - General method for the determination of water insoluble matter
Standard published on 15.5.2008
Selected format:Chemical reagent - General method for the determination of iron
Standard published on 3.11.2006
Selected format:Screwscross recessed120° raised countersunkhead
Standard published on 13.10.1976
Selected format:Chemical reagent - General method for the determination of dry residue after evaporation
Standard published on 15.5.2008
Selected format:Chemical reagent - General method for the determination of residue after ignition
Standard published on 15.5.2008
Selected format:Chemical reagent - General method for the determination of silicate
Standard published on 15.5.2008
Selected format:Passenger car tyres
Standard published on 29.4.2024
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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