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Standards GB - Chinese national standards - Page 27
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 10267.4-1988
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Method for analysis of calcium metal--The determination of aluminium by oxine chloroform extraction photometric method
Standard published on 30.12.1988
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GB/T 10267.4-2025
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Methods for analysis of calcium metal—Part 4:Determination of aluminum by 8-hydroxyquinoline-trichloromethane extraction spectrophotometry
Execute Date: may 2026
Standard published on 5.10.2025
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GB/T 10267.5-1988
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Method for analysis of calcium metal--The determination of nitrogen by distillation--Nessler reagent photometric method
Standard published on 30.12.1988
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GB/T 10267.5-2025
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Methods for analysis of calcium metal—Part 5Determination of nitrogen by distillation-Nessler spectrophotometry
Execute Date: may 2026
Standard published on 5.10.2025
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GB/T 10268-2008
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Uranium ore concetrate
Standard published on 19.6.2008
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GB/T 1028-2018
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Industrial surplus energy resources evaluation methods
Standard published on 17.9.2018
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GB/T 10280-2008
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Forestry machinery - Portable pneumatic fire extinguisher
Standard published on 11.12.2008
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GB/T 10283-2016
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Forestry machinery—Portable pneumatic fire extinguisher—Measurement of vibration
Standard published on 24.2.2016
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GB/T 10284-2016
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Forestry machinery—Portable pneumatic fire extinguisher—Measurement of noise
Standard published on 24.2.2016
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GB 10287-2012
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National food safety standards -- Food additives -- Rosin and partially hydrogenated rosin
Standard published on 25.12.2012
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