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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
Health protection zone standard for oil refinery
WITHDRAWN published on 24.7.1987
Selected format:Health protection zone for petroleum processing industry
WITHDRAWN published on 30.12.2011
Selected format:Sefety requirement of guard on machinery
WITHDRAWN published on 21.9.1987
Selected format:Safety of machinery—Guards—General requirements for the design and construction of fixed and movable guards
WITHDRAWN published on 13.3.2003
Selected format:Safety requirement of shield
WITHDRAWN published on 21.9.1987
Selected format:Analytical method of content for thiocyclam hydrogen oxalate technical
WITHDRAWN published on 1.1.1987
Selected format:Analytical method of content for pyridaphenthione
WITHDRAWN published on 1.1.1987
Selected format:Testing methods for long-term and long-lasting performance of ordinary concrete
WITHDRAWN published on 25.11.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Countersunk raised head screws (common head style) with cross recess
WITHDRAWN published on 26.9.2000
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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