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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
Test methods for civil small and light multi-copter unmanned aircraft docking system
Execute Date: february 2027
Standard published on 2.7.2026
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Flow quality requirements for low and high speed wind tunnel
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Road vehicles--Controlsindicators and tell-tales--Vocabulary
Standard published on 3.7.2001
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General requirements for design and inspection of high speed wind tunnel test models
Execute Date: february 2027
Standard published on 2.7.2026
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General requirements for design and inspection of hypersonic wind tunnel test models
Execute Date: february 2027
Standard published on 2.7.2026
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Test methods for heat flux measurements in hypersonic wind tunnel
Execute Date: february 2027
Standard published on 2.7.2026
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Flow quality requirements for hypersonic wind tunnel—Part 1: Conventional hypersonic wind tunnel
Execute Date: february 2027
Standard published on 2.7.2026
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Test methods for aero-optical effects of aircraft model in wind tunnel
Execute Date: february 2027
Standard published on 2.7.2026
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Technical requirements of wind tunnel balance calibration system
Execute Date: february 2027
Standard published on 2.7.2026
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Aerospace series—Fluid, hydraulic, phosphate ester-base, fire resistant—Technical specification
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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