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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
Alumina
WITHDRAWN published on 1.1.1987
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Cross recessed pan head screws
WITHDRAWN published on 1.1.1985
Selected format:Pan head screws with cross recess
WITHDRAWN published on 26.9.2000
Selected format:Wrought titanium and titanium alloy products packing, marking, transporting and storing
WITHDRAWN published on 31.8.1987
Selected format:Wrought titanium and titanium alloy products packing, marking, transporting and storing
WITHDRAWN published on 30.4.2007
Selected format:Performance requirements and tests methods for fire water branch
WITHDRAWN published on 4.10.1987
Selected format:Tantalum and tantalum alloy seamless tubes
WITHDRAWN published on 31.8.1987
Selected format:Niobium seamless tubes
WITHDRAWN published on 31.8.1987
Selected format:The rhodium eletroplating solution
WITHDRAWN published on 31.8.1987
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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