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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
Chemical analysis of refractories containing chrome
Standard published on 10.12.2015
Selected format:Technical renovtion code for small hydropower station
Standard published on 15.7.2022
Selected format:Code for design of fired brick and tile plant
Standard published on 26.7.2011
Selected format:Code for design of strengthening masonry structures
Standard published on 26.7.2011
Selected format:Code for design of automaticity equipment for power system security
Standard published on 26.7.2011
Selected format:Code for design of crystalian silicon solar cell plant
Standard published on 26.7.2011
Selected format:Code for design of garments plant
Standard published on 28.5.2012
Selected format:Code for design of occupational safety and health of water resources and hydropower projects
Standard published on 26.7.2011
Selected format:Code for design of river regulation
Standard published on 26.7.2011
Selected format:Technical code of glued laminated timber structures
Standard published on 21.1.2012
Selected format:Latest update: 2026-10-27 (Number of items: 2 208 060)
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