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Standards GB - Chinese national standards - Page 4758

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 47097-2026

Polished monocrystalline aluminum nitride wafers

Standard published on 28.1.2026

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GB/T 47098-2026

Refractory products—Determination of reduced species in carbon containing refractories by XRD

Standard published on 28.1.2026

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GB/T 47099-2026

Rubber flaps for tyres—Requirements and test methods

Standard published on 28.1.2026

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GB/T 47100-2026

Particulate materials—Sampling and sample splitting for the determination of particulate properties

Standard published on 28.1.2026

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GB/T 47101-2026

Surface chemical analysis—Scanning probe microscopy—Procedure for the determination of elastic moduli for compliant materials using atomic force microscope and the two-point JKR method

Standard published on 28.1.2026

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GB/T 47102-2026

Greenhouse gas—Quantitative method and requirement for product carbon footprint—Rare earth permanent magnet materials

Standard published on 28.1.2026

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