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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
Plastics—Determination of charpy impact properties—Part 2:Instrumented impact test
Standard published on 15.3.2018
Selected format:Inspection method for bonding ability of sintered friction elements
Standard published on 11.8.2008
Selected format:Transverse vibration testing method for fasteners
Standard published on 25.8.2008
Selected format:Fasteners—Studs and ceramic ferrules for arc stud welding
Standard published on 29.9.2024
Selected format:Round composite cans
Standard published on 18.7.2008
Selected format:Method of type establishment for mechanical seals
Standard published on 29.9.2024
Selected format:Plain bearings--Shaft diameters for unsplit bushes
Standard published on 22.2.1989
Selected format:
Plain bearings—Shaft diameters for unsplit bushes
Execute Date: february 2026
Standard published on 31.10.2025
Selected format:Plain bearings - Ring type thrust washers - Dimensions and tolerances
Standard published on 25.8.2008
Selected format:Plain bearings - Pressed bimetallic half thrust washers - Features and tolerances
Standard published on 25.8.2008
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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