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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
Inspection of grain and oils - Bread baking test of wheat flour - Sponge-dough method
Standard published on 4.11.2008
Selected format:Inspection of grain and oilseeds - Wheat-meal fermentation time testPelshenke test
Standard published on 22.8.2008
Selected format:Inspection of grain and oils—Doughs rheological properties determination of wheat flour—Farinograph test
Standard published on 10.5.2019
Selected format:Determination of rheological properties of dough using alveograph
Standard published on 5.9.2005
Selected format:Inspection of grain and oils—Doughs rheological properties determination of wheat flour—Extensograph test
Standard published on 10.5.2019
Selected format:General specification for engine-room bottom coating
Standard published on 30.7.2008
Selected format:
Engine-room bottom coating
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Propagation characteristics in land mobile service and fixed service - Part 1: Propagation characteristics in land mobile service
Standard published on 31.12.2012
Selected format:Propagation characteristics in land mobile service and fixed service - Part 2: Propagation characteristics for the terrestrial fixed service in 100 MHz1 000 MHz
Standard published on 31.12.2012
Selected format:Propagation characteristics in land mobile service and fixed service - Part 3: Propagation characteristics of line-of-sight radio-relay communications systems
Standard published on 31.12.2012
Selected format:Latest update: 2026-04-16 (Number of items: 2 272 849)
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