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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
Requirements of electromagnetic environment protection for air defense surveillance radar station
Standard published on 19.8.1992
Selected format:Interference calculation methods for digital radio-relay systems
Standard published on 5.5.2009
Selected format:Determination of coordination area and predication methods of interference between satellite communication earth station and terrestrial microwave station
Standard published on 5.5.2009
Selected format:Terminology for radio regulation
Standard published on 29.6.2012
Selected format:Requirement of safety and characterstics of aluminium pressure cooker
Standard published on 25.4.2003
Selected format:Functional design criteria for safety parameter display system for nuclear power plants
Standard published on 2.7.2008
Selected format:Seismic qualification of safety class electrical equipment for nuclear power plants
Standard published on 14.5.2018
Selected format:Application of the single-failure criterion for nuclear power plant safety systems
Standard published on 31.12.2021
Selected format:Criteria for accident monitoring instrumentation for nuclear power plants
Standard published on 31.12.2021
Selected format:Criteria for programmable digital devices in safety systems of nuclear power generating stations
Standard published on 28.12.2023
Selected format:Latest update: 2026-04-05 (Number of items: 2 271 011)
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