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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
Test methods for submersible motor-pumps
WITHDRAWN published on 10.3.2002
Selected format:Automatic diesel generating sets for general specification
WITHDRAWN published on 11.4.1991
Selected format:General specification for automatic electric power plant with internal combustion engines
WITHDRAWN published on 6.3.2006
Selected format:Warning equipment for criticality accidents
WITHDRAWN published on 11.4.1991
Selected format:Criteria for class 1E power systems for nuclear power plants
WITHDRAWN published on 3.1.2000
Selected format:Criteria for class 1E power systems for nuclear power generating stations
WITHDRAWN published on 2.7.2008
Selected format:Criteria for nuclear reactor instrumentation Part 1:General principles
WITHDRAWN published on 11.4.1997
Selected format:Criteria for nuclear reactor instrumentation—Part 2:Pressurized water reactors
WITHDRAWN published on 11.4.1991
Selected format:Criteria for nuclear reactor instrumentation Part three—High temperature gas-cooled reactor(HTGR)
WITHDRAWN published on 17.12.1992
Selected format:Chemical reagent—Ammonium iron () sulfate dodecahydrate
WITHDRAWN published on 31.3.1989
Selected format:Latest update: 2026-05-15 (Number of items: 2 278 685)
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