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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
Grooved pulleys for automotive V-belt
WITHDRAWN published on 28.3.1992
Selected format:Standard quantity of spare for engine room machinery of sea-going ship
WITHDRAWN published on 30.3.1992
Selected format:Gray-King assay for coal
WITHDRAWN published on 1.1.1987
Selected format:Gray—King assay for coal
WITHDRAWN published on 12.11.2001
Selected format:The technical specifications of turbochargers used for marine diesel engines
WITHDRAWN published on 30.3.1992
Selected format:Technical requirements for marine controllable pitch propellers
WITHDRAWN published on 30.3.1992
Selected format:Marine exhaust gas boiler specification
WITHDRAWN published on 30.3.1992
Selected format:Mixers, radio frequency, general specification for
WITHDRAWN published on 3.4.1992
Selected format:Switches(coaxial), RF transmission line, general specification for
WITHDRAWN published on 3.4.1992
Selected format:Contents list for scientific and technical periodicals
WITHDRAWN published on 13.4.1992
Selected format:Latest update: 2026-04-20 (Number of items: 2 274 419)
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