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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
Zinc and zinc alloy powder for additive manufacturing
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Standard published on 28.1.2026
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Green product assessment—Roofing tiles
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Standard published on 28.1.2026
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Green product assessment—Cement
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Standard published on 28.1.2026
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Polished monocrystalline aluminum nitride wafers
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Standard published on 28.1.2026
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Refractory products—Determination of reduced species in carbon containing refractories by XRD
Execute Date: august 2026
Standard published on 28.1.2026
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Rubber flaps for tyres—Requirements and test methods
Execute Date: august 2026
Standard published on 28.1.2026
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Particulate materials—Sampling and sample splitting for the determination of particulate properties
Execute Date: august 2026
Standard published on 28.1.2026
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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
Execute Date: august 2026
Standard published on 28.1.2026
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Greenhouse gas—Quantitative method and requirement for product carbon footprint—Rare earth permanent magnet materials
Execute Date: august 2026
Standard published on 28.1.2026
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Green product assessment—Paving building products
Execute Date: august 2026
Standard published on 28.1.2026
Selected format:Latest update: 2026-07-19 (Number of items: 2 288 934)
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