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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
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WITHDRAWN published on 1.1.1988
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WITHDRAWN published on 1.1.1988
Selected format:Calibration for radiation protection instruments X and exposure rate meters
WITHDRAWN published on 12.4.1988
Selected format:In-core instrumentation for neutron fluence rate measurements in nuclear reactors
WITHDRAWN published on 12.4.1988
Selected format:Dimensions of sample planchets used in nuclear electronic instruments
WITHDRAWN published on 12.4.1988
Selected format:Calibration for alpha, beta surface contamination meters and monitors
WITHDRAWN published on 12.4.1988
Selected format:Environmental thermoluminescence dosimeter and its usage
WITHDRAWN published on 12.4.1988
Selected format:General rule of quality assurance for ionizing radiation monitoring
WITHDRAWN published on 12.4.1988
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WITHDRAWN published on 1.1.1987
Selected format:Specifications for the design of railways
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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