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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 processing systems—Local area networks—Part 2:Logical link control
WITHDRAWN published on 21.6.1995
Selected format:Information processing systems—Local area networks—Part 3:Carrier sense multiple access with collision detection(CSMA/CD)—access method and physical layer specifications
WITHDRAWN published on 21.6.1995
Selected format:Information processing systems—Local area network—Part 4:Token-passing bus access method and physical layer specifications
WITHDRAWN published on 2.9.1997
Selected format:Taper keys--Cross section dimensions of keys and keyways
WITHDRAWN published on 23.6.1979
Selected format:Taper keys—Cross section dimensions of keyways
WITHDRAWN published on 5.6.2003
Selected format:Performance requirements and test methods for point infrared flame detectors
WITHDRAWN published on 19.7.1995
Selected format:General specifications for live-line lifting device
WITHDRAWN published on 25.7.1995
Selected format:Single input energizing quantify measuring relays and protective equipment with nonspecified-time
WITHDRAWN published on 24.7.1995
Selected format:Electronic data interchange for administration, commerce and transport (EDIFACT) —Segments directory
WITHDRAWN published on 24.7.1995
Selected format:Electronic data interchange for administration,commerce and transport (EDIFACT)—Segment directory
WITHDRAWN published on 18.6.2008
Selected format:Latest update: 2024-09-28 (Number of items: 2 350 600)
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