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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
Road construction and road maintenance machinery and equipment—Asphalt mixing plant
WITHDRAWN published on 1.12.2010
Selected format:Reference tape for broadcast recording
WITHDRAWN published on 25.10.1979
Selected format:Feed grade DL-methionine
WITHDRAWN published on 10.8.1999
Selected format:Determination of digestibility in animal protein feeds—Pepsin method
WITHDRAWN published on 10.8.1999
Selected format:Determination of vitamin E in feeds—High-pressure liquid chromatography
WITHDRAWN published on 10.8.1999
Selected format:Determination of vitamin E in feeds - High-performance liquid chromatography
WITHDRAWN published on 31.12.2008
Selected format:Determination of nicotinic acid and folic acid in compound premix—High-pressure liquid chromatography
WITHDRAWN published on 10.8.1999
Selected format:Determination of butyl hydroxy anisole, dibutyl hydroxy toluene and ethoxyquin in feeds
WITHDRAWN published on 10.8.1999
Selected format:Determination of butyl hydroxy anisole,dibutyl hydroxy toluene,ethoxyquin and propyl gallate in feeds
WITHDRAWN published on 30.12.2011
Selected format:Determination of propionic acid, propionate in feeds
WITHDRAWN published on 10.8.1999
Selected format:Latest update: 2025-09-04 (Number of items: 2 231 185)
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