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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
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WITHDRAWN published on 1.1.1978
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WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1983
Selected format:Surface grinding machines with horizontal grinding wheel spindle and reciprocating table—Testing of the accuracy
WITHDRAWN published on 15.12.1983
Selected format:Surface grinding machines with horizontal grinding wheel spindle and reciprocating table—Testing of the accuracy—Part 1:Machines with a table surface length of up to 1 600 mm
WITHDRAWN published on 17.7.2007
Selected format:Semiconductor discrete devices--Part 2: Rectifier diodes
WITHDRAWN published on 1.1.1986
Selected format:Semiconductor devices—Discrete devices and integrated circuits—Part 2:Rectifier diodes
WITHDRAWN published on 7.10.1997
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WITHDRAWN published on 1.1.1983
Selected format:Basic and safety principles for man-machine interface, marking and identification Coding principles for indication devices and actuators
WITHDRAWN published on 21.2.2003
Selected format:Identification of electric equipment terminals and of terminations of certain designated conductors, including general rules for an alphanumeric system
WITHDRAWN published on 19.2.1992
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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