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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
Ferroalloys - Vocabulary - Part 3: Sieve analysis
Standard published on 2.9.2010
Selected format:General rules of dimensions, shape, surface, quality, testing method and inspection for expansion alloys
Standard published on 14.8.2007
Selected format:Soft magnetic alloys—Part 1General requirements
Standard published on 29.8.2025
Selected format:Soft magnetic alloys—Part 2Nickel-iron alloys
Standard published on 29.8.2025
Selected format:Soft magnetic alloys—Part 3Iron-cobalt alloys
Standard published on 7.6.2018
Selected format:Soft magnetic alloys—Part 4Iron-chromium alloys
Standard published on 7.6.2018
Selected format:Soft magnetic alloys—Part 5Iron-aluminium alloys
Standard published on 14.5.2018
Selected format:Hysteresis alloy
Standard published on 11.9.2008
Selected format:Iron-cobalt-vanadium permanent-magnet alloys
Standard published on 10.12.2015
Selected format:Steel for the reinforcement of concrete—Part 1:Hot rolled plain bars
Standard published on 25.6.2024
Selected format:Latest update: 2026-04-23 (Number of items: 2 274 600)
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