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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
Butadiene for industrial use - Determination of tert-butyl-catechol (TBC)
Standard published on 19.6.2008
Selected format:Butadiene for industrial use - Determination of oxygen in gaseous phase above liquid butadiene
Standard published on 19.6.2008
Selected format:Butadiene for industrial use - Determination of trace water - Coulometric Karl Fischer method
Standard published on 19.6.2008
Selected format:Butadiene for industrial use--Determinationof trace amine
Standard published on 10.8.1999
Selected format:Acetone for industrial use
Standard published on 31.12.2013
Selected format:n-Butanol for industrial use
Standard published on 7.9.2023
Selected format:Rubbervulcanized—Determination of accelerants—Thin layer chromatographic method
Standard published on 13.10.2016
Selected format:Chemical reagent—Preparations of reagent solutions for use in test methods
Standard published on 6.8.2023
Selected format:Rubber - Assessment of carbon black and carbon black /Silica dispersion - Rapid comparative methods
Standard published on 1.9.2006
Selected format:Rubber,vulcanized or thermoplastic—Determination of low-temperature stiffening(Gehman test)
Standard published on 14.12.2020
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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