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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
Terminology of gas cylinders
Standard published on 30.12.2011
Selected format:NPSH for centrifugal,mixed flow and axial flow pumps
Standard published on 17.12.2013
Selected format:Centrifugal pump - Effeciency
Standard published on 30.12.2011
Selected format:Technical specification for mixed and axial flow pumps
Standard published on 26.9.2010
Selected format:Hollow drill steels for rock drilling
Standard published on 29.8.2025
Selected format:Veneer for wood industry
Standard published on 19.11.2020
Selected format:Methods of measurement of d.c. magnetic properties of magnetically soft materials
Standard published on 10.10.2008
Selected format:Quenching and self-tempering ribbed bars for the reinforcement of concrete
Standard published on 18.9.2013
Selected format:standard for pollution control on Polychlorinated Biphenyls (PCBs)-contaminated wastes
Standard published on 29.9.2017
Selected format:Principles and requirements for constructing standard system
Standard published on 6.2.2018
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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