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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
Radial turbochargers--Connection dimensions
WITHDRAWN published on 25.11.2003
Selected format:Diesel engines--Exhaust smoke measurement method at free acceleration
WITHDRAWN published on 25.6.1988
Selected format:General rule for analytical method of alundum powder
WITHDRAWN published on 27.6.1988
Selected format:Method for determination of ignition loss of alundum powder
WITHDRAWN published on 27.6.1988
Selected format:Determination of CaOMgOSiO2Fe2O3TiO2 in alundum powder by ICP-AES
WITHDRAWN published on 27.6.1988
Selected format:Determination of Fe2O3CaOMgONa2O and K2O in alundum powder byatomic absorption spectrophotometry
WITHDRAWN published on 27.6.1988
Selected format:Determination of Al2O3 in alundum powder by complexometric titration
WITHDRAWN published on 27.6.1988
Selected format:Determination of SiO2 in alundum powderby colorimetry
WITHDRAWN published on 27.6.1988
Selected format:Determination of TiO2 in alundum powderby colorimetry
WITHDRAWN published on 27.6.1988
Selected format:Determination of chloride in alundum powder by visual turbidimetry
WITHDRAWN published on 27.6.1988
Selected format:Latest update: 2024-09-05 (Number of items: 2 346 132)
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