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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
NIM standard instrumentation system—Mechanical dimensions,power supply and electrical signal requirements
Standard published on 5.10.2025
Selected format:Coaxial cable connectors usedin nuclear instrumentation
Standard published on 18.7.2008
Selected format:Semiconductor devices--Integrated circuits--Part 2:Digital integrated circuits--Section one--Blank detail specification for bipolar monolithic digital integrated circuit gates(excluding uncommitted logic arrays)
Standard published on 3.1.2000
Selected format:Fixed capacitors for use in electronic equipment - Part 8: Sectional specification: Fixed capacitors of ceramic dielectric,Class 1
Standard published on 30.12.2011
Selected format:Fixed capacitors for use in electronic equipment - Part 8-1: Blank detail specification: Fixed capacitor of ceramic dielectric,Class 1 - Assessment level EZ
Standard published on 30.12.2011
Selected format:Fixed capacitors for use in electronic equipment - Part 9: Sectional specification:Fixed capacitors of ceramic dielectric,Class 2
Standard published on 30.12.2011
Selected format:Fixed capacitors for use in electronic equipment - Part 9-1: Blank detail specificationFixed capacitor of ceramic dielectric,Class 2 - Assessment level EZ
Standard published on 5.11.2012
Selected format:Marine bronze male thread lift check valves
Standard published on 15.12.1983
Selected format:Cranes—Wire ropes—Care and maintenance, inspection and discard
Standard published on 23.5.2023
Selected format:Cuneiform connector for use with steel wire ropes
Standard published on 3.4.2006
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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