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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
Foundry pig iron
WITHDRAWN published on 19.1.1965
Selected format:Foundry pig iron
WITHDRAWN published on 13.5.2005
Selected format:Basic parameters of electric locomotives of railway trunk lines
WITHDRAWN published on 16.1.1987
Selected format:Measurement of mechanical active substances in railway locomotives
WITHDRAWN published on 3.1.2000
Selected format:Measurement of noise in engine room of diesel locomotives
WITHDRAWN published on 16.1.1987
Selected format:Evaluation of mechanical vibration severity of machines and equipments in electric locomotives
WITHDRAWN published on 16.1.1987
Selected format:Measurement method of vibration for small and medium power diesel engines
WITHDRAWN published on 12.1.1987
Selected format:Small and medium power diesel engines—Measurement and evaluation of vibration
WITHDRAWN published on 11.8.2008
Selected format:Hydraulic steering gear on the inland navigation ships
WITHDRAWN published on 16.1.1987
Selected format:Hydraulic steering gear on the inland navigation ships
WITHDRAWN published on 30.5.2002
Selected format:Latest update: 2026-04-06 (Number of items: 2 271 069)
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