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Standards GB - Chinese national standards - Page 803
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 17711-1999
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The DC electric resistance test method for the critical temperature Tc of a YBa2Cu3O7- superconducting thin film
Standard published on 13.3.1999
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GB/T 17712-2018
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Duplicators and copying machines—Symbols
Standard published on 17.9.2018
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GB/T 17713-2022
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Range hoods and other cooking fume extractors
Standard published on 30.12.2022
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GB/T 17714-2022
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Quality general rules of beer keg
Standard published on 30.12.2022
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GB/T 17715-1999
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Grass carp
Standard published on 5.4.1999
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GB/T 17716-1999
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Black carp
Standard published on 5.4.1999
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GB/T 17717-1999
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Silver carp
Standard published on 5.4.1999
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GB/T 17718-1999
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Bighead carp
Standard published on 5.4.1999
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GB/T 17719-2009
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Calculation method and utilization guides for waste heat resource’s quantity of industrial boiler’s and flame heating furnace’s exhaust gas
Standard published on 8.4.2009
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GB/T 17720-2025
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Metallic coatings—Review of porosity tests
Standard published on 31.10.2025
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