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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
Round wire concentric lay overhead electrical stranded conductors
Standard published on 1.11.2017
Selected format:Test methods on mechanical and weathering properties for unplasticized polyvinyl chloride (PVC-U) doors and windows
Standard published on 24.12.2008
Selected format:The graphics symbols for the scene of road traffic accident
Standard published on 10.6.2005
Selected format:Marine explosion-proof type centrifugal fans
Standard published on 3.3.2008
Selected format:Taper pins with internal thread
Standard published on 26.9.2000
Selected format:Photovoltaic modules—Extended-stress testing—Part 1: Modules
Standard published on 4.1.2026
Selected format:Marine explosion-proof type axial flow fans
Standard published on 3.3.2008
Selected format:Marine A.C. low voltage switchboard
Standard published on 1.8.2025
Selected format:Environmental conditions for electric and electronic products-Terminologies
Standard published on 3.3.2005
Selected format:General specifications of automatic control components (devices) and their related system for hydroturbine-generating sets
Standard published on 4.6.2019
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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