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Standards GB - Chinese national standards - Page 5318
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 6853-2008
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pH primary reagent - Potassium dihydrogen phosphate
Standard published on 31.12.2008
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GB 6854-2008
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pH primary reagent - Disodium hydrogen phosphate
Standard published on 31.12.2008
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GB 6856-2008
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pH primary reagent - Sodium tetraborate decahydrate
Standard published on 31.12.2008
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GB 6857-2008
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pH primary reagent - Potassium hydrogen phthalate
Standard published on 31.12.2008
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GB/T 686-2023
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Chemical reagent—Acetone
Standard published on 6.8.2023
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GB/T 6864-2003
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Codes for degree of the People’s Republic of China
Standard published on 25.7.2003
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GB/T 6865-2009
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Codes for levels of language proficiency and foreign language test grades
Standard published on 15.10.2009
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GB/T 6866-2008
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Garden tools - General requirements
Standard published on 30.12.2008
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GB/T 687-2011
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Chemical reagent - Glycerol
Standard published on 12.5.2011
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GB/T 6877-2008
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Classification, terminology and numbering for parts and assemblies of the time measuring instruments - Classification, terminology and numbering for parts and assemblies of mechanical wrist watch movements
Standard published on 31.7.2008
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