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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
Nickel-cadmium alkaline secondary cells
WITHDRAWN published on 20.6.1988
Selected format:Nickel-cadmium alkaline secondary batteries
WITHDRAWN published on 20.6.1988
Selected format:General technical requirements for type C helical video tape recorders
WITHDRAWN published on 17.6.1988
Selected format:Reels for 25.4 mm video magnetic tape
WITHDRAWN published on 17.6.1988
Selected format:Methods of measurement on receivers for television broadcast transmissions
WITHDRAWN published on 1.12.1988
Selected format:Basic parameters for sound broadcasting receivers
WITHDRAWN published on 18.6.1988
Selected format:Listening tests on radio receiver and/or tape recorder
WITHDRAWN published on 18.6.1988
Selected format:Basic performance parameters for medium wave and shortwave AM broadcasting transmitters
WITHDRAWN published on 18.6.1988
Selected format:Methods of measurement for broadcasting transmitters used in MW or SW band
WITHDRAWN published on 18.6.1988
Selected format:Safety requirements for video-audio and pulse equipment of broadcasting television studio system
WITHDRAWN published on 18.6.1988
Selected format:Latest update: 2024-09-05 (Number of items: 2 346 132)
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