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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
Marine cast iron flanged check valves
Standard published on 3.7.2015
Selected format:Light-signalling devices and systems for motor vehicles and their trailers
Standard published on 29.9.2024
Selected format:Motor vehicles and towed vehicles—Air braking systems—Identification of connections on units
Standard published on 11.9.2015
Selected format:Motor vehicles and towed vehicles - Pressure test connection for compressed-air pneumatic braking equipment
Standard published on 20.10.2008
Selected format:Test methods of fuel filter for automotive compression ignition engines
Standard published on 10.1.2011
Selected format:Marine packed cocks
Standard published on 30.8.2019
Selected format:Marine forged steel male thread stop valves
Standard published on 14.2.2008
Selected format:San-he cattle
Standard published on 10.1.2011
Selected format:Test method for bubble and air line of transparent quartz glass
Standard published on 24.7.2014
Selected format:Marine bronze male thread stop valves
Standard published on 30.7.2008
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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