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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 technical specification of fully automatic operation system for urban rail transit
Standard published on 29.8.2025
Selected format:Performance requirements and test methods for automobile active noise cancellation system
Standard published on 29.8.2025
Selected format:Motor vehicle inspection—Technical requirements and testing methods for zero gas source
Standard published on 29.8.2025
Selected format:Paper and board--Determination ofcapillary rise--Klemm methods
Standard published on 6.9.2002
Selected format:Paper and board-Determination of water absorption(immersion in water)
Standard published on 26.9.2005
Selected format:Plastics - Determination of ignition temperature using a hot-air furnace
Standard published on 30.6.2008
Selected format:Reduced series fixed 90° corner anchor self-locking nuts with counterbore and MJ threads for aerospace
Standard published on 29.8.2025
Selected format:High strength bihexagonal head bolts with MJ threads for aerospace
Standard published on 29.8.2025
Selected format:Requirments and test methods of the capability of wind resistance for tethered balloon
Standard published on 29.8.2025
Selected format:Reduced series fixed closed corner anchor self-locking nuts with counterbore and MJ threads for aerospace
Standard published on 29.8.2025
Selected format:Latest update: 2026-11-11 (Number of items: 2 209 285)
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