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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
Partially depleted gold silicon surface barrier detectors
WITHDRAWN published on 11.4.1991
Selected format:Si(Li)X-ray detector system
WITHDRAWN published on 11.4.1991
Selected format:Coating for optical element--Double layer anti-reflecting coating by hydrolitic process
WITHDRAWN published on 1.1.1988
Selected format:G-M counter tubes for detecting radiation
WITHDRAWN published on 11.4.1991
Selected format:Thallium-activated sodium iodide scintillator
WITHDRAWN published on 11.4.1991
Selected format:Measurement methods of scintillator characteristics
WITHDRAWN published on 8.10.2002
Selected format:Scintillation detectors of sodium iodide (thallium)
WITHDRAWN published on 11.4.1991
Selected format:General specification for sweep signal generators
WITHDRAWN published on 27.9.1991
Selected format:Measuring methods for sweep signal generators
WITHDRAWN published on 27.9.1991
Selected format:Radar speedometer for marshalling yard
WITHDRAWN published on 21.9.1991
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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