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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
Specifications for disc separator
WITHDRAWN published on 1.1.1989
Selected format:Methods of property testing for disc separator
WITHDRAWN published on 1.1.1989
Selected format:Filter belt press--Specifications
WITHDRAWN published on 1.1.1989
Selected format:Specifications for the design of industrial water softening and desalting
WITHDRAWN published on 25.7.1987
Selected format:Testing for filter belt press
WITHDRAWN published on 1.1.1989
Selected format:Performance testing for centrifuge
WITHDRAWN published on 31.3.1989
Selected format:Methods of performance testing for centrifuge
WITHDRAWN published on 11.7.2005
Selected format:Plastics mixer machines
WITHDRAWN published on 31.3.1989
Selected format:Check metod of mixer for plastics
WITHDRAWN published on 31.3.1989
Selected format:Filled polytetrafluoroethylene soft strip for guideways
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-03-06 (Number of items: 2 265 266)
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