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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
General methods of test for pigments and extenders—Part 3: Determination of matter volatile at 105
Standard published on 19.11.2020
Selected format:Determination of tamped volume and apparent density of pigments
Standard published on 16.7.1985
Selected format:Method for the determination of resistance to materials of pigments
Standard published on 4.6.2008
Selected format:General methods of test for pigments and extenders—Part 6: Determination of pH value of an aqueous suspension
Standard published on 19.11.2020
Selected format:General methods of test for pigments and extenders—Part 9Comparision of resistance to light of coloured pigments of similar types
Standard published on 30.6.2025
Selected format:Hot rolled silicon steel sheets for electrical grade
Standard published on 18.7.1985
Selected format:Cold rolled low carbon steel sheet and strip
Standard published on 25.3.2019
Selected format:Structural steel with specified hardenability bands
Standard published on 5.12.2014
Selected format:Steel wire for prestressing of concrete
Standard published on 5.10.2025
Selected format:Steel bars for the prestressing of concrete
Standard published on 28.2.2017
Selected format:Latest update: 2026-06-29 (Number of items: 2 284 476)
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