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Standards GB - Chinese national standards - Page 819
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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GB/T 17802-2011
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Thermal analysis test methods for Arrhenius kinetics constants of thermally unstable materials
Standard published on 20.7.2011
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GB/T 17803-2015
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Designation system for rare earth products
Standard published on 11.9.2015
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GB/T 17803-2015E
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Designation system for rare earth products
Standard published on 11.9.2015
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GB/T 17804-2009
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Reciprocating internal combustion engines - Graphical symbols
Standard published on 19.3.2009
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GB/T 17805-2025
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Measurement of intake air or exhaust gas flow of diesel engines
Standard published on 2.12.2025
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GB/T 17808-2021
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Road construction and maintenance machinery and equipment—Asphalt mixing plant
Standard published on 11.10.2021
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GB/T 17809-1999
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Damping materials--Graphical presentation of the complex modulus
Standard published on 11.8.1999
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GB/T 17810-2009
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Feed grade DL-methionine
Standard published on 26.5.2009
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GB/T 17811-2025
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Determination of pepsin digestibility for animal-derived protein feeds—Filtration method
Standard published on 1.8.2025
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GB/T 17812-2025
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Determination of vitamin E in feeds—High performance liquid chromatography
Standard published on 24.1.2025
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