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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
Guide on maintainability of equipment Part 9:Statistical methods in maintainability evaluation
WITHDRAWN published on 7.3.2001
Selected format:Information processing--Magnetic disk for data storage devices--96000 flux transitions per track200mm outer diameter 63.5mm inner diameter
WITHDRAWN published on 20.6.1988
Selected format:Information processing--Magnetic disk for data storage devices--158000 flux transitions per track 210mm outer diameter 100mm inner diameter
WITHDRAWN published on 20.6.1988
Selected format:Information processing--Data interchange on 130mm flexible disk cartridges using modified frequency modulation recording at 7958 ftprad 1.9tpmm on both sides--Part 1:Dimensional physical and magnetic characteristics
WITHDRAWN published on 20.6.1988
Selected format:Information processing--Datainterchange on 130mm flexible disk cartridges using modified frequency modulation recording at 7958 ftprad 1.9tpmm on both sides--Part 2:Track format A
WITHDRAWN published on 20.6.1988
Selected format:Information processing--Datainterchange on 130mm flexible disk cartridges using modified frequency modulation recording at 7958 ftprad1.9tpmm on both sides--Part 3:Track format B
WITHDRAWN published on 20.6.1988
Selected format:Series and products for semiconductor TTL integrated circuits--Products of 54/74 ALS family
WITHDRAWN published on 23.6.1988
Selected format:Methods of test of luminance stability for fluorescent display tubes
WITHDRAWN published on 23.6.1988
Selected format:Blank detailspecification 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WITHDRAWN published on 23.6.1988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:Latest update: 2024-09-05 (Number of items: 2 346 132)
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