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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
Regulations for the safe transport of radioactive material
Standard published on 4.4.2019
Selected format:Characteristicsdesign and operational procedures for acoustic monitoring systems of loose parts detection important to safety in nuclear power plants
Standard published on 31.12.2021
Selected format:Test method of weld of fuel rod for PWR—Metallographic examination and radiographic testing
Standard published on 11.10.2021
Selected format:The interference-fit threads
Standard published on 28.8.1998
Selected format:Tin113 - Indium113m generator
Standard published on 2.7.2008
Selected format:Helium leak testing of nuclear fuel rod for PWR
Standard published on 2.7.2008
Selected format:Specification of the 57Co Mossbauer sources
Standard published on 21.11.1989
Selected format:Geometrical product specifications(GPS)—Geometrical tolerancing—Tolerances of form, orientation, location and run-out
Standard published on 17.9.2018
Selected format:The specification of photographic archives management
Standard published on 4.12.2002
Selected format:General requirements for the file formation of scientific and technological archives
Standard published on 13.11.2008
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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