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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 products for industrial use - General method for determination of water content - The loss of mass on drying method
Standard published on 29.12.2006
Selected format:Determination of trace oxygen in gases—Electrochemical method
Standard published on 13.12.2016
Selected format:Determination of bulk density for molecular sieve
Standard published on 20.8.2021
Selected format:Determination of static adsorbed water for molecular sieve
Standard published on 20.8.2021
Selected format:Determination of particle size for granular molecular sieve
Standard published on 20.8.2021
Selected format:Pliers and nippers - Nomenclature
Standard published on 12.11.2013
Selected format:Chemical reagent--Sodium hydroxide
Standard published on 9.9.1997
Selected format:
Chemical reagent—Sodium hydroxide
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Pliers and nipers - General technical requirements
Standard published on 12.11.2013
Selected format:Pliers and nippers - Methods of test
Standard published on 12.11.2013
Selected format:Latest update: 2026-08-09 (Number of items: 2 292 444)
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