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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
Series and products for semiconductor TTL integrated circuits--Products of 54/74 ALS family
WITHDRAWN published on 23.6.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:(Detailed specifications of electronic components. CC4518 type CMOS semiconductor integrated dual synchronous decimal counter (for certification))
WITHDRAWN published on 1.1.1988
Selected format:Semiconductor integrated circuit--CC4518 CMOS dual BCD up-counter
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic component--Semiconductor integrated circuit--CW7805 three-terminal positive voltage regulator
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic component--Semiconductor integrated circuit-CF747 general dual operational amplifiers
WITHDRAWN published on 1.1.1988
Selected format:Methods of test of luminance stability for fluorescent display tubes
WITHDRAWN published on 23.6.1988
Selected format:Blank detail specification for glass enevelope transmitting tubes of anode dissipation over 1kW
WITHDRAWN published on 23.6.1988
Selected format:Useful screen dimensions for color picture tubes
WITHDRAWN published on 23.6.1988
Selected format:Letter symbols of parameter for liquid crystal display devices
WITHDRAWN published on 23.6.1988
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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