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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
Specification of nuclear fuel rods for miniature neutron source reactor
WITHDRAWN published on 2.2.1992
Selected format:Determination of chlorine in uranium dioxide powders and pellets by pyrohydrolysis ion-selective electrode method
WITHDRAWN published on 2.2.1992
Selected format:Determination of copper, iron nickel magnesium, manganese, zinc and silver in uranium dioxide powders and pellets by atomic absorption spectrophotometry
WITHDRAWN published on 2.2.1992
Selected format:Determination of trace elements in uranium dioxide powders and pellets by ICP-AES
WITHDRAWN published on 2.2.1992
Selected format:Spectrographic analysis of uranium oxide (U3O8) by gallium oxide-carrier technique
WITHDRAWN published on 2.2.1992
Selected format:Natural uranium hexafluoride specification
WITHDRAWN published on 19.5.1999
Selected format:Natural uranium hexafluoride specification
WITHDRAWN published on 19.6.2008
Selected format:Plastic scintillators
WITHDRAWN published on 2.2.1992
Selected format:Crude petroleum and liquid or solid petroleum products—Determination of density or relative density—Capillary stoppered pyknometer and graduated bicapillary pyknometer method
WITHDRAWN published on 30.1.1992
Selected format:Method of daylighting measurements under clear skies
WITHDRAWN published on 9.2.1992
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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