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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
Methods for sampling and sample preparation of flotation copper concentrates in bulk
Standard published on 23.12.2010
Selected format:Terminology of semiconductor materials
Standard published on 25.4.2024
Selected format:General rule of chemical analysis for hydrogen,oxygen,nitrogen,carbon and sulfur in metallic materials
Standard published on 14.10.2017
Selected format:Electro-optical distance metersEDM Instruments
Standard published on 6.5.2009
Selected format:Revision specifications for the national fundamental scale topographic maps
Standard published on 20.6.2008
Selected format:Sample method of carbon material
Standard published on 14.6.2016
Selected format:Test method for fiber type content of hair fibers
Standard published on 20.8.2008
Selected format:Test method for the yield of greasy wool and raw cashmere—Oil pressure method
Standard published on 29.9.2024
Selected format:Down garments
Standard published on 9.3.2021
Selected format:Polymeric materialscellular flexible--Accelerated ageing tests
Standard published on 10.1.2003
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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