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Standards GB - Chinese national standards - Page 4612
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 46049-2025
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Rubber- or plastic-coated fabrics—Physical and mechanical test—Determination of bending force
Standard published on 29.8.2025
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GB/T 4605-2025
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Rolling bearings—Thrust needle roller and cage assemblies, thrust washers
Standard published on 31.10.2025
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GB/T 46050-2025
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Manganese and chromium ores—Experimental methods for checking the precision of sample division
Standard published on 29.8.2025
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GB/T 46051-2025
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Choke and kill hose and hose assemblies
Standard published on 29.8.2025
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GB/T 46052-2025
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Corrosion of metals and alloys—Sulfur dioxide test in a humid atmospherefixed gas method
Standard published on 29.8.2025
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GB/T 46053-2025
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Technical specification at the project level for assessment of greenhouse gas emission reductions—Aggregate from iron ore waste rock
Standard published on 29.8.2025
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GB/T 46054-2025
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Corrosion of metals and alloys—Electrochemical measurements—Test method for monitoring atmospheric corrosion
Standard published on 29.8.2025
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GB/T 46055-2025
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Corrosion of metals and alloys—Guidelines for corrosion testing of metals and alloys exposed in deep-sea water
Standard published on 29.8.2025
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GB/T 46056-2025
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Determination of sulfur in refractory products by gravimetric, photometric and titrimetric methods
Standard published on 29.8.2025
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GB/T 46057-2025
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Microbeam analysis—Scanning electron microscopy—Method for evaluating critical dimensions by CD-SEM
Standard published on 29.8.2025
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