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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
Test method of thermal properties for marine heat exchanger
WITHDRAWN published on 21.3.2005
Selected format:Implants for surgery—Ultra-high molecular weight polyethylene—Part 1:Powder form
WITHDRAWN published on 23.3.2005
Selected format:Implants for surgery Ultra-high molecular weight polyethylene—Part 2:Moulded forms
WITHDRAWN published on 23.3.2005
Selected format:In vitro diagnostic medical devices—Measurement of quantities in samples of biological origin—Presentation of reference measurement procedures
WITHDRAWN published on 23.3.2005
Selected format:In vitro diagnostic medical devices—Measurement of quantities in samples of biological origin—Description of reference materials
WITHDRAWN published on 23.3.2005
Selected format:Display and record for hydrological instrument
WITHDRAWN published on 2.3.2005
Selected format:General specification of signals and interfaces for hydrologic instruments
WITHDRAWN published on 2.3.2005
Selected format:Football shoes
WITHDRAWN published on 23.3.2005
Selected format:Terminal markings and direction of rotation of rotating electrical machines
WITHDRAWN published on 23.5.1980
Selected format:Rotating electrical machines—Terminal markings and direction of rotation
WITHDRAWN published on 30.4.2006
Selected format:Latest update: 2025-12-24 (Number of items: 2 253 093)
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