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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
Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Further Higher Data Rate Extension in the 2.4 GHz Band
Standard published on 27.1.2006
Selected format:Information technology - Telecommunications and information exchange between systems local and metropolitan area networks - Specific requirements - Part 15.4: Wireless medium access control and physical layerPHY)specification for low rate wireless personal area networks
Standard published on 2.9.2010
Selected format:Information technologyTelecommunications and information exchange between systemsLocal and metropolitan area networks—Specific requirements—Part 16: Air interface for broadband wireless multimedia systems
Standard published on 31.5.2017
Selected format:Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 2: Logical link control
Standard published on 28.7.2008
Selected format:Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 3:Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specification
Standard published on 22.12.2014
Selected format:Taper keys—Cross section dimensions of keyways
Standard published on 28.2.2017
Selected format:Requirements for the placement of fire safety signs
Standard published on 19.7.1995
Selected format:Special type fire detectors
Standard published on 1.9.2008
Selected format:General specifications of wire holding tools for live working
Standard published on 30.12.2008
Selected format:Thickness gauges utilizing ionizing radiation
Standard published on 2.7.2008
Selected format:Latest update: 2026-04-30 (Number of items: 2 275 280)
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