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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
Guides for providing and managing of the measuring instruments of energy in enterprise
WITHDRAWN published on 22.12.1997
Selected format:Dental casting precious metal alloys
WITHDRAWN published on 22.12.1997
Selected format:Dental casting precious metal alloys
WITHDRAWN published on 31.3.2008
Selected format:Test method for the surface quality of polished silicon wafers and epitaxial wafers by optical-reflection
WITHDRAWN published on 22.12.1997
Selected format:Determination of pH value of an aqueous suspension of pigments
WITHDRAWN published on 26.8.1986
Selected format:Test method for deep level EL2 concentration of undoped semi-insulating monocrystal gallium arsenide by measurement infrared absorption method
WITHDRAWN published on 22.12.1997
Selected format:Aquosity aluminium paste
WITHDRAWN published on 22.12.1997
Selected format:Information technology—Open systems interconnection—Distributed transaction processing—Part 1:OSI TP model
WITHDRAWN published on 25.12.1997
Selected format:Information technology—Open systems interconnection—Distributed transaction processing—Distributed Transaction Processing—Part 2:OSI TP Service
WITHDRAWN published on 25.12.1997
Selected format:Information technology—Open systems interconnection—Distributed Transaction Processing—Part 3:Protocol specification
WITHDRAWN published on 25.12.1997
Selected format:Latest update: 2025-11-14 (Number of items: 2 243 651)
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