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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
Calculating methods for heat balance,heat efficiency and comprehensive energy consumption of cement rotary kiln
WITHDRAWN published on 14.1.2011
Selected format:Measuring methods of heat balance of cement rotary kiln
WITHDRAWN published on 14.1.2011
Selected format:Aluminium alloys sacrificial anode for electrical water heater
WITHDRAWN published on 14.1.2011
Selected format:Dichlorodiammine palladium ()
WITHDRAWN published on 14.1.2011
Selected format:Enamel dough basins
WITHDRAWN published on 1.1.1981
Selected format:Copper-nickel seamless pipe for ships
WITHDRAWN published on 14.1.2011
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Nickel cobalt manganese composite hydroxide
WITHDRAWN published on 14.1.2011
Selected format:Copper-nickel-zine alloy strips for shield
WITHDRAWN published on 10.1.2011
Selected format:Seamless copper and copper alloys tube for heat pipe
WITHDRAWN published on 14.1.2011
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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