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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
Frequency-flick-free a.c. supplied electronic ballasts for tubular fluorescent lamps—Performance requirements
WITHDRAWN published on 16.6.2011
Selected format:Timekeeping instruments—Movements—Types,dimensions and nomenclature
WITHDRAWN published on 16.6.2011
Selected format:Pencils and mechanical pencils for exam
WITHDRAWN published on 16.6.2011
Selected format:Ball pens for exam
WITHDRAWN published on 16.6.2011
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Hexalobular socket pan head tapping screws
WITHDRAWN published on 10.2.2004
Selected format:Hexalobular socket countersunk head tapping screws
WITHDRAWN published on 10.2.2004
Selected format:Hexalobular socket raised countersunk(oval)head tapping screws
WITHDRAWN published on 10.2.2004
Selected format:Determination of abrasion resistance for top piece of leather shoes—Rotation cylindrical drum method
WITHDRAWN published on 16.6.2011
Selected format:Pencils
WITHDRAWN published on 16.6.2011
Selected format:Latest update: 2026-03-26 (Number of items: 2 269 551)
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