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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
Radio-frequency connectors—Part 58: Sectional specification for SBMA series blind-mate RF coaxial connectors
Standard published on 7.9.2023
Selected format:Radio-frequency connectors—Part 8: Sectional specification for RF coaxial connectors with inner diameter of outer conductor 6.5 mm (0.256 in) with bayonet lock—Characteristic impedance 5075(type BNC)
Standard published on 2.6.2015
Selected format:Radio-frequency connectorsPart 9: Sectional specification for SMC series R.F. coaxial connectors
Standard published on 17.12.2013
Selected format:Equipments and components used in cabled distribution systems primarily intended for television and sound signals. Part 1: Generic specifications
Standard published on 9.9.1996
Selected format:Equipments and components used in cabled distribution systemsprimarily intended for television and sound signals--Part 11:Generic specifications for attenuator equalizer filter and trap
Standard published on 9.9.1996
Selected format:Equipments and components used in cabled distribution systems primarily intended for television and sound signals. Part 12: Generic specifications for system outlets
Standard published on 9.9.1996
Selected format:Equipments and components used in cabled distribution systems primarily intended for television and sound signals--Part 4:Generic specifications for channel processor
Standard published on 9.9.1996
Selected format:Equipments and components used in cabled distribution systems primarily intended for television and sound signals. Part 8: Generic specifications for trunk amplifiers
Standard published on 9.9.1996
Selected format:Equipments and components used in cabled distribution systems primarily intended for television and sound signals--Part 9:Generic specifications of equipments for power supply
Standard published on 9.9.1996
Selected format:Machine chucking reamers with cylindrical shanks and Morse taper shanks
Standard published on 28.2.2017
Selected format:Latest update: 2026-03-18 (Number of items: 2 266 854)
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