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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
Metallic materials - Shear test method for wires and rivets
Standard published on 11.9.2007
Selected format:Method for ultrasonic testing of steel forgings
Standard published on 29.9.2024
Selected format:Radii of sphere surfaces
Standard published on 27.9.2008
Selected format:Lubricating grooves
Standard published on 27.9.2008
Selected format:Knurl
Standard published on 27.9.2008
Selected format:Rounding and chamfer of parts
Standard published on 27.9.2008
Selected format:Relief grooves for grinding wheels
Standard published on 27.9.2008
Selected format:Acceptance code for gear units-Part1:Test code for airborne sound
Standard published on 19.9.2005
Selected format:Acceptance code for gear units-Part2:Determination of mechanical vibrations of gear units during acceptance testing
Standard published on 19.9.2005
Selected format:Superabrasive—Types of cubic boron nitride
Standard published on 29.12.2017
Selected format:Latest update: 2026-06-21 (Number of items: 2 283 476)
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