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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
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WITHDRAWN published on 1.1.1978
Selected format:Determination of moisture content in carbon materials
WITHDRAWN published on 29.9.1978
Selected format:Thermal time delay switch, Generic specification of
WITHDRAWN published on 3.4.1993
Selected format:Thermostatic switch, Generic specification of
WITHDRAWN published on 3.4.1993
Selected format:Performance requirements and test methods for ILS glide path beacon
WITHDRAWN published on 3.4.1993
Selected format:Performance requirements and test methods for ILS localizer
WITHDRAWN published on 3.4.1993
Selected format:General specifications of spot-welding robots
WITHDRAWN published on 3.4.1993
Selected format:Industrial robots—General specifications
WITHDRAWN published on 3.4.1993
Selected format:Technical code for relaying protection and security automatic equipment
WITHDRAWN published on 10.4.1993
Selected format:Technical code for relaying protection and security automatic equipment
WITHDRAWN published on 30.8.2006
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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