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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
Series of basic dimensions of subracks and associated plug-in units panels for protection and automation equipment of power system
Standard published on 15.5.2015
Selected format:Arrangement,types and basic dimensions of consoles for electronic equipments
Standard published on 19.6.2008
Selected format:Turbocharger nomenclature and code
Standard published on 31.10.2025
Selected format:Methods for the measurement of direct inter-electrode capacitances of electronic tubes and valves
Standard published on 11.9.2015
Selected format:Hinges general technical condition
Standard published on 19.2.1987
Selected format:Tin ingot
Standard published on 6.3.2020
Selected format:Tin ingot
Standard published on 6.3.2020
Selected format:Wooden framed case
Standard published on 24.2.2016
Selected format:Test method of infrared heater
Standard published on 30.6.2008
Selected format:Electric components—Reliability—Reference conditions for failure rates and stress models for conversion
Standard published on 1.11.2017
Selected format:Latest update: 2026-11-09 (Number of items: 2 209 259)
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