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Standards GB - Chinese national standards - Page 4620

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 46061-2025

Rubber compounding ingredients—Determination of process oils glass transition temperature by DSC

Standard published on 29.8.2025

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GB/T 46062-2025

Monolithic (unshaped) refractory products—Gunning refractory panels by wet gunning techniques

Standard published on 29.8.2025

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GB/T 46063-2025

Continuous fiber reinforced ceramic matrix composite—Test method for hoop tensile properties of tubes at room temperature

Standard published on 29.8.2025

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GB/T 46064-2025

Metakaolin powder used for concrete and mortar

Standard published on 29.8.2025

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GB/T 46065-2025

Continuous fiber reinforced ceramic matrix composite—Test method for axial tensile properties of tubes at room temperature

Standard published on 29.8.2025

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GB/T 46066-2025

Corrosion of metals and alloys—Measurement of critical crevice temperature for cylindrical crevice geometries in ferric chloride solution

Standard published on 29.8.2025

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GB/T 46067-2025

Citywide digital transformation—General requirements for object identification system of city entity

Standard published on 29.8.2025

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GB/T 46068-2025

Data security technology—Security certification requirements for cross-border processing activity of personal information

Standard published on 29.8.2025

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GB/T 46069.1-2025

Artificial intelligence—Operator interface—Part 1:Basic mathematical classes

Standard published on 29.8.2025

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GB/T 46069.2-2025

Artificial intelligence—Operator interface—Part 2:Neural network classes

Standard published on 29.8.2025

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