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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
Imaging materials—Processed imaging materials—Albums, framing and storage materials
Execute Date: february 2027
Standard published on 2.7.2026
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Imaging materials—Test method for Arrhenius-type predictions
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Standard published on 2.7.2026
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Identification and coding of city gas transmission and distribution system
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Standard published on 2.7.2026
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Methods for measuring high temperature magnetic properties of high coercivity permanent magnet materials
Execute Date: february 2027
Standard published on 2.7.2026
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Determination of thermal adhesion for dipped cords and yarns—Part 1:U extraction method
Execute Date: february 2027
Standard published on 2.7.2026
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Manganese oresSamplingPart 1:Increment Sampling
Execute Date: february 2027
Standard published on 2.7.2026
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Test methods for organic solvent nanofiltration membrane
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Determination of plastometric indices of bituminous coal
Standard published on 13.12.2016
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Sintered polymer microporous membrane element
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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