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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
FluorsparDetermination of carbonate content
Standard published on 16.8.2006
Selected format:Fluorspar—Determination of loss in mass at 105—Gravimetric method
Standard published on 7.9.2017
Selected format:Methods for chemical analysis of fluorspar—Part 4: Determination of total sulfur and sulfide content
Standard published on 29.8.2025
Selected format:Fluorspar—Determination of phosphorus content—Photometric method
Standard published on 14.10.2017
Selected format:Fluorspar—Determination of zinc content—Flame atomic absorption spectrophotometric method
Standard published on 13.12.2016
Selected format:FluorsparDetermination of silicon dioxide content
Standard published on 16.8.2006
Selected format:Fluorspar—Determination of loss on ignition—Gravimetric method
Standard published on 13.12.2016
Selected format:Ropes and cordage - Colour code for identification
Standard published on 18.6.2008
Selected format:Information technology - Chinese ideogram coded character set (basic set) - 15×16 dot matrix font
Standard published on 10.1.2011
Selected format:Test procedures for semiconductor charged particle detectors
Standard published on 29.6.2012
Selected format:Latest update: 2026-06-30 (Number of items: 2 284 675)
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