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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
Petroleum waxes--Test for sulfide
WITHDRAWN published on 1.1.1989
Selected format:Copper and copper alloys—Terms and definitions
WITHDRAWN published on 31.3.1989
Selected format:Brass strip for heat-exchanger tubing
WITHDRAWN published on 10.7.2001
Selected format:Nickel and its alloy sheets and strips for electronic tube
WITHDRAWN published on 31.3.1989
Selected format:Leaded brass strips for special purpose
WITHDRAWN published on 31.3.1989
Selected format:End mills with short Morse taper shank
WITHDRAWN published on 6.12.1973
Selected format:End mills with shot Morse taper shank
WITHDRAWN published on 10.2.2004
Selected format:Copper and copper alloy strips for detonator
WITHDRAWN published on 31.3.1989
Selected format:Copper strip for cables
WITHDRAWN published on 31.3.1989
Selected format:Copper strips for cables
WITHDRAWN published on 4.7.2005
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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