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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
General test methods of power supply equipments for telecommunications
WITHDRAWN published on 28.5.1997
Selected format:Method of tightening test for threaded fasteners
WITHDRAWN published on 29.5.1997
Selected format:Hexagon head tapping screws with collar
WITHDRAWN published on 29.5.1997
Selected format:Hexagon washer head tapping screws
WITHDRAWN published on 24.2.2016
Selected format:Hexagon flange head tapping screws
WITHDRAWN published on 29.5.1997
Selected format:Verification of tensile testing machines
WITHDRAWN published on 29.5.1997
Selected format:Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
WITHDRAWN published on 25.11.2002
Selected format:Verification of static uniaxial testing machines—Part 1:Tension/compression testing machines—Verification and calibration of the force-measuring system
WITHDRAWN published on 20.6.2008
Selected format:Verification of static uniaxial testing machines—Part 2:Tension creep testing machines—Verification of the applied force
WITHDRAWN published on 29.8.2005
Selected format:Electro-hydraulic universal testing machines
WITHDRAWN published on 29.5.1997
Selected format:Latest update: 2026-02-01 (Number of items: 2 258 192)
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