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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
Code for the design of urban green space
Standard published on 9.4.2021
Selected format:standard forlighting design of buildings
Standard published on 8.9.2021
Selected format:Standard for daylighting design of buildings
Standard published on 8.9.2021
Selected format:Code for investigation of geotechnical engineering
Standard published on 8.9.2021
Selected format:Code for engineering surveying
Standard published on 8.9.2021
Selected format:Codes for accessibility design
Standard published on 8.9.2021
Selected format:Inspection of grain and oils—Determination of milling degree of rice
Standard published on 6.2.2018
Selected format:Inspection of grain and oils—Determination of milling degree of rice and other grain kernels
Standard published on 31.10.2025
Selected format:Code for design of building water supply and drainage
Standard published on 8.9.2021
Selected format:Standard for seismic appraisal of buildings
Standard published on 8.9.2021
Selected format:Latest update: 2026-06-28 (Number of items: 2 284 473)
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