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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
Minimum allowable values of water efficiency and water efficiency grades for water closets
WITHDRAWN published on 10.1.2011
Selected format:Minimum allowable values of water efficiency and water efficiency grades for water closets
WITHDRAWN published on 9.3.2017
Selected format:Requirements in sell and market service of city gas burning-appliances
WITHDRAWN published on 10.1.2011
Selected format:Specification for hose for equipment for gas welding, cutting and related processes—Acetylene rubber hose
WITHDRAWN published on 9.6.1992
Selected format:Rubber hose for transporting dilute acid and alkali
WITHDRAWN published on 1.1.1981
Selected format:Specification for index head
WITHDRAWN published on 1.1.1981
Selected format:Mechanical dividing heads--Testing of the accuracy
WITHDRAWN published on 1.1.1984
Selected format:Mechanical dividing heads—Testing of accuracy
WITHDRAWN published on 18.11.1998
Selected format:Mechanical dividing heads—Classifications and technical specifications
WITHDRAWN published on 18.11.1998
Selected format:Polydextrose national food safety standards of food additives
WITHDRAWN published on 21.12.2010
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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