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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
E-cores for three-phase transformers for use in electronic equipment
Standard published on 31.12.2012
Selected format:Information technology—Administrative service code—Reference model
Standard published on 1.8.2025
Selected format:General technical requirements for meteorological measurement standards—Temperature
Standard published on 1.8.2025
Selected format:Performance test methods for meteorological instruments and equipments—Atmospheric pressure
Standard published on 1.8.2025
Selected format:Digital government architecture framework-Part 1: Reference model
Standard published on 1.8.2025
Selected format:Digital government architecture framework-Part 2: Architecture design
Standard published on 1.8.2025
Selected format:Digital government architecture framework—Part 3: Governance
Standard published on 1.8.2025
Selected format:Digital government architecture framework—Part 4: Capability assessment
Standard published on 1.8.2025
Selected format:Digital government architecture framework—Part 5: Information exchange model
Standard published on 1.8.2025
Selected format:Technical specification for disintegrating of molten steel slag by self-generating steam
Standard published on 1.8.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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