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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
Indicator system and data structure of national cadre and personnel management information system—Part 2:Data structure
WITHDRAWN published on 15.10.2009
Selected format:Application of connectors for the interconnection of sound system equipment
WITHDRAWN published on 4.3.1994
Selected format:Specification of equipments for power supply used in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
WITHDRAWN published on 1.1.1994
Selected format:Specification of system outlet used in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
WITHDRAWN published on 1.1.1994
Selected format:Specification of pilot generatorused used in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
WITHDRAWN published on 1.1.1994
Selected format:Specification of channel processor used in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
WITHDRAWN published on 1.1.1994
Selected format:Specification of attenuators, equalizers, filters and rejection filters in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
WITHDRAWN published on 1.1.1994
Selected format:Manganese ores—Determination of carbon dioxide content
WITHDRAWN published on 18.1.1994
Selected format:Manganese ores—Determination of combined water content
WITHDRAWN published on 18.1.1994
Selected format:Manganese ore—Determination of nickel content
WITHDRAWN published on 18.1.1994
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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