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Standards GB - Chinese national standards - Page 4791
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 47375-2026
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Salt fog test methods for manned spacecraft materials
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47376-2026
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Full-life-cycle corrosion evaluation method of oil and gas tubing string
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47377-2026
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Comprehensive tests method of air environment of manned spacecraft complex
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47378-2026
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High voltage safety design criteria for space station
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47379-2026
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Aerospace—Spline drives wrenching configuration—Metric series
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 4738-2015
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Test method for acid, alkaline resistance for ceramic materials of daily use
Standard published on 3.7.2015
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GB/T 47380-2026
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Self-locking, two lug anchor nuts, with counterbore and MJ threads for aerospace—Dimensions
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47381-2026
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Aircraft—Engine nacelle fire extinguisher apertures and doors
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47382-2026
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Envelope dimensions for aerospace fluid system P-type(loop-type) clamps
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 47383-2026
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Aerospace—O-ring grooves—Dimensions
Execute Date: november 2026
Standard published on 30.4.2026
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