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Standards GB - Chinese national standards - Page 634
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 1646-2020
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2-Naphthol
Standard published on 19.11.2020
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GB/T 16460-2016
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Tool life testing in end milling
Standard published on 24.2.2016
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GB/T 16461-2016
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Tool-life testing with single-point turning tools
Standard published on 24.2.2016
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GB/T 16462.1-2023
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Test conditions for numerically controlled turning machines and turning centres—Part 1:Geometric tests for machines with horizontal workholding spindle
Standard published on 28.12.2023
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GB/T 16462.2-2023
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Test conditions for numerically controlled turning machines and turning centres—Part 2:Geometric tests for machines with a vertical workholding spindle
Standard published on 28.12.2023
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GB/T 16462.3-2017
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Test conditions for numerically controlled turning machines and turning centres—Part 3: Geometric tests for machines with inverted vertical work-holding spindles
Standard published on 12.7.2017
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GB/T 16462.4-2007
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Test conditions for numerically controlled turning machines and turning centres - Part 4: Accuracy and repeatability of positioning of linear and rotary axes
Standard published on 26.7.2007
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GB/T 16462.5-2025
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Test conditions for numerically controlled turning machines and turning centres—Part 5:Accuracy of speeds and interpolations
Standard published on 31.10.2025
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GB/T 16462.6-2017
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Test conditions for numerically controlled turning machines and turning centers—Part 6: Accuracy of a finished test piece
Standard published on 12.7.2017
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GB/T 16462.7-2009
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Test conditions for numerically controlled turning machines and turning centres - Part 7: Evaluation of contouring performance in the coordinate planes
Standard published on 13.4.2009
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