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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
Specification of controlling weld hardness of carbon steel and low alloy steel piping and equipment to prevent sulfide stress cracking
WITHDRAWN published on 30.12.2011
Selected format:Keyboard for international information processing interchange using the 7-bit coded character set—Alpha- numeric area
WITHDRAWN published on 26.10.1981
Selected format:Measurement method of energy saving products for marine
WITHDRAWN published on 30.12.2011
Selected format:Technical specification of energy saving products for marine
WITHDRAWN published on 30.12.2011
Selected format:Patron external display for toll collection of highway
WITHDRAWN published on 30.12.2011
Selected format:Spiral spring for indicating electrical measuring instruments
WITHDRAWN published on 1.1.1981
Selected format:Thermoprobe
WITHDRAWN published on 30.12.2011
Selected format:Restraining devices for child occupants of power-driven vehicles
WITHDRAWN published on 30.12.2011
Selected format:Ships and marine technology—Terms,abbreviations,graphical symbols and concepts on navigation
WITHDRAWN published on 30.12.2011
Selected format:Technical requirements for network interface for the analogue microwave relay communication systems
WITHDRAWN published on 27.10.1981
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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