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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
Determination of tin content in selenium--Phenylfluorone-cetylirimethylammonium bromide absorption photometric method
WITHDRAWN published on 1.1.1980
Selected format:Synthetic fibres for cement,cement mortar and concrete
WITHDRAWN published on 1.11.2007
Selected format:Animal and vegetable fats and oils—Determination of oxidation stability(Accelerated oxidation test)
WITHDRAWN published on 16.10.2007
Selected format:Fortified wheat flour
WITHDRAWN published on 16.10.2007
Selected format:Nutritional fortified - Edible oil and fat with vitamin A
WITHDRAWN published on 16.10.2007
Selected format:Determination of aluminum content in selenium--Chrome azurol S--Cetyl trimethyl ammonium bromide absorption photometric method
WITHDRAWN published on 1.1.1980
Selected format:Environmental tobacco smoke—Estimation of its contribution to respirable suspended particles—Determination of particulate matter by ultraviolet absorbance and by fluorescence
WITHDRAWN published on 16.10.2007
Selected format:Tobacco and tobacco products—Determination of dithiocarbamate pesticides residues—Molecular absorption spectrometric method
WITHDRAWN published on 16.10.2007
Selected format:Environmental tobacco smoke—Estimation of its contribution to respirable suspended particles—Method based on solanesol
WITHDRAWN published on 16.10.2007
Selected format:Tobacco and tobacco products—Determination of silicated residues insoluble in hydrochloric acid
WITHDRAWN published on 16.10.2007
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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