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Standards GB - Chinese national standards - Page 4661
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 47251.2-2026
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Printed electronics equipment—Contact printing rigid master—Part 2: Measurement method of plate master pattern dimension
Standard published on 27.2.2026
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GB/T 47252.1-2026
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Printed electronics—Requirements for reproducibility of printability—Part 1: Basic patterns for evaluation of printing machine
Standard published on 27.2.2026
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GB/T 47253-2026
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Foundry machinery—Ladles, pouring machines and associated equipment—Safety technical specifications
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 47254-2026
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Plain bearings—Dynamic adhesion test method for DLC coated parts under lubricated condition
Standard published on 27.2.2026
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GB/T 47255-2026
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Foundry machinery—Die casting machines and cells—Safety technical specifications
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 47256-2026
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Foundry machinery—Molding and coremaking equipment—Safety technical specifications
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 47257-2026
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Foundry machinery—Abrasive blasting equipment—Safety technical specifications
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 47258-2026
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Gas cylinders—Valve protection caps and guards—Design, construction and tests
Standard published on 27.2.2026
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GB/T 47259-2026
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Noise transmission loss test method of aircraft fuselage structures
Execute Date: october 2026
Standard published on 31.3.2026
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GB/T 47260.6-2026
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Test method for rail fastening systems—Part 6: Test method for resistance to severe environmental conditions
Execute Date: october 2026
Standard published on 31.3.2026
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