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Standards GB - Chinese national standards - Page 4631
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 46195-2025
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Space environment—International reference ionosphere(IRI) model and extensions to the plasmasphere
Standard published on 5.10.2025
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GB/T 46196-2025
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Technical specifications for log production of white jelly fungus
Standard published on 5.10.2025
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GB/T 46197.1-2025
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Plastics—PolyetheretherketonePEEKmoulding and extrusion materials—Part 1:Designation system and basis for specifications
Standard published on 29.8.2025
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GB/T 46197.2-2025
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Plastics—PolyetheretherketonePEEKmoulding and extrusion materials—Part 2: Preparation of test specimens and determination of properties
Standard published on 29.8.2025
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GB/T 46198-2025
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Corrosion of metals and alloys—Cathodic protection of offshore wind structures
Standard published on 29.8.2025
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GB/T 46199-2025
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Ductile iron pipes for trenchless application
Standard published on 29.8.2025
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GB/T 462-2023
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Paper, board and pulps—Determination of moisture content of analytical sample
Standard published on 7.9.2023
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GB/T 46200-2025
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Determination of coefficient of linear thermal expansion of fiber reinforced polymer matrix composites at ultra-low temperature
Standard published on 29.8.2025
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GB/T 46201-2025
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Fiber reinforced composites—Determination of mixed mode I-mode II interlaminar fracture toughness of unidirectional reinforced materials
Standard published on 29.8.2025
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GB/T 46202-2025
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Plastics/rubber—Polymer dispersions and rubber latices (natural and synthetic)—Definitions and review of test methods
Standard published on 29.8.2025
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