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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
Determination method of noise emitted by separating machine
WITHDRAWN published on 9.6.2004
Selected format:Centrifuger and separator—Measurement method of mechanical vibration
WITHDRAWN published on 31.3.1989
Selected format:Testing methods for performance of plate and frame filter presses and recessed plate filter presses
WITHDRAWN published on 1.1.1989
Selected format: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WITHDRAWN published on 1.1.1989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WITHDRAWN published on 1.1.1989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WITHDRAWN published on 1.1.1989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WITHDRAWN published on 25.7.1987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WITHDRAWN published on 1.1.1989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WITHDRAWN published on 31.3.1989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WITHDRAWN published on 11.7.2005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:Latest update: 2026-01-28 (Number of items: 2 257 539)
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