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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--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WITHDRAWN published on 20.6.1988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WITHDRAWN published on 20.6.1988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WITHDRAWN published on 20.6.1988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:Motor vehicles-type and model designation
WITHDRAWN published on 25.6.1988
Selected format:(Wings open style tailgate lift transport vehicle technical conditions)
WITHDRAWN published on 1.1.1988
Selected format:(Light fuel oil tank cars technical conditions)
WITHDRAWN published on 1.1.1988
Selected format:Packages of yarns and intermediate products--Forms of winding
WITHDRAWN published on 1.1.1989
Selected format:Standard method for carbon black--Improving test reproducibility using ASTM reference blacks
WITHDRAWN published on 1.1.1988
Selected format:(Auto Radiator technical conditions)
WITHDRAWN published on 1.1.1988
Selected format:Detail specification for electronic components--Semiconductor microcomputer integrated circuits--Cµ6800 8-bit microprocessor
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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