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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
Oil tempered silicon-manganese alloy steel spring wires
WITHDRAWN published on 1.1.1984
Selected format:Oil tempered chromium-silicon alloy steel valve spring quality wire
WITHDRAWN published on 1.1.1984
Selected format:Testing method for the heat characteristics of firewood stoves
WITHDRAWN published on 1.1.1984
Selected format:Signs of operating directions of manual control mechanism of telecommunication equipments
WITHDRAWN published on 14.5.1984
Selected format:Terminology for radio interference
WITHDRAWN published on 1.1.1984
Selected format:Terminology for electromagnetic compatibility
WITHDRAWN published on 25.8.1995
Selected format:Electrotechnical terminology--Electromagnetic compatibility
WITHDRAWN published on 17.1.2003
Selected format:Sintered molybdenum alloy mandrels for tube-rolling
WITHDRAWN published on 1.1.1984
Selected format:Welded and weld-rolled titanium tubes
WITHDRAWN published on 1.1.1984
Selected format:Welded and weld-rolled titanium tubes for condensers and heat exchangers
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2026-01-28 (Number of items: 2 257 539)
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