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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
Shielding performance and test methods of protection material aganst X-rays
WITHDRAWN published on 23.5.1996
Selected format:Radiological protection standard for gamma-ray afterloading brachytherapy
WITHDRAWN published on 23.5.1996
Selected format:Radiological protection standards for ionization smoke fire detectors
WITHDRAWN published on 23.5.1996
Selected format:Radiological health protection standards for production gas mantles
WITHDRAWN published on 23.5.1996
Selected format:Radiological protection standards for using geothermal water
WITHDRAWN published on 23.5.1996
Selected format:Radiological protection standards for gauges containing sealed radioactive source
WITHDRAWN published on 23.5.1996
Selected format:Radiological protection standards for using of medical electron accelerator
WITHDRAWN published on 23.5.1996
Selected format:Method for the determination of shade and colouring strength for dyeing solubilised reduced dyes
WITHDRAWN published on 15.9.1979
Selected format:Solubilised vat dyes-Determination of dyeing shade and relative strength
WITHDRAWN published on 9.10.2003
Selected format:Diagnostic criteria and principles of management of occupational chronic acrylamide poisoning
WITHDRAWN published on 23.5.1996
Selected format:Latest update: 2025-09-17 (Number of items: 2 234 360)
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