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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 nuts
Standard published on 24.6.1988
Selected format:High-purity n-heptane and isooctance--Determination of purity--Capillary gas chromatography
Standard published on 29.7.1987
Selected format:The terminology of technological materials of heat treatment
Standard published on 3.9.2012
Selected format:Bore dial indicator
Standard published on 25.4.2024
Selected format:Dial test indicators
Standard published on 30.4.2007
Selected format:Tolerances and general features of gauges for metric trapezoidal screw threads
Standard published on 10.2.2004
Selected format:Test methods for single-phase series motors
Standard published on 30.12.2022
Selected format:Industrial automation systems—Numerical control of machines—Vocabulary
Standard published on 10.12.2015
Selected format:Erhualian pig
Standard published on 30.4.2021
Selected format:Method for inspection of raw marmot skins
Standard published on 26.5.2009
Selected format:Latest update: 2026-04-30 (Number of items: 2 275 280)
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