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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
Standard Test Method for Ultraviolet Adsorption of White Oils
Standard published on 25.5.2005
Selected format:Loss of bulk petroleum liquid products
Standard published on 31.3.1989
Selected format:Copper and copper alloys - Terms and definitions
Standard published on 17.12.2013
Selected format:Brass strip for heat-exchanger tubing
Standard published on 31.12.2012
Selected format:copper and copper alloy strips for detonator
Standard published on 27.11.2013
Selected format:Copper strip and foil for cables
Standard published on 25.4.2024
Selected format:Liquid encapsulated czochralski - grown gallium arsenide single crystals and as-cut slices
Standard published on 11.9.2007
Selected format:Gallium arsenide single crystal and cutting wafer grown by horizontal bridgman method
Standard published on 29.9.2020
Selected format:Cemented carbide blanks for round rods
Standard published on 6.3.2020
Selected format:Cemented carbide products for geological exploration drilling tools
Standard published on 9.6.2008
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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