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Standards GB - Chinese national standards - Page 4639

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 46207-2025

Coding specification for scientific data identification

Standard published on 5.10.2025

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GB/T 46208-2025

Science and technology resource sharing—Specification for science and technology resource information integration

Standard published on 5.10.2025

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GB/T 46209-2025

Specification for information description of Chinese materia medica resources

Standard published on 5.10.2025

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GB/T 46210-2025

Guidelines on project cost management

Standard published on 5.10.2025

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GB/T 46211-2025

Plastics—Hardeners and accelerators for epoxide resins—Determination of free acid in acid anhydride

Standard published on 29.8.2025

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GB/T 46212-2025

Petroleum drilling and production equipment—Electromagnetic telemetry measurement while drilling

Standard published on 29.8.2025

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GB/T 46213-2025

Technical specification for remanufacturing of Nd-Fe-B bonded magnet wastes

Standard published on 29.8.2025

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GB/T 46214-2025

Hot-rolled H section steel for bridge steel structure

Standard published on 29.8.2025

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GB/T 46215-2025

Corrosion of metals and alloys—Evaluation of selective corrosion of Cu alloys and grey cast iron for power plant components by visual inspection and hardness measurement

Standard published on 29.8.2025

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GB/T 46216-2025

Ultrasonic phased array testing method for round steel

Standard published on 29.8.2025

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