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Standards GB - Chinese national standards - Page 4693
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 46719.2-2026
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Aerospace—Hydraulic filter elements test methods—Part 2:Conditioning
Standard published on 28.1.2026
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GB/T 46719.3-2026
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Aerospace—Hydraulic filter elements test methods—Part 3: Filtration efficiency and retention capacity
Execute Date: december 2026
Standard published on 25.5.2026
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GB/T 46719.4-2025
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Aerospace - Hydraulic filter elements test methods - Part 4: Verification of collapse/burst pressure rating
Standard published on 2.12.2025
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GB/T 46719.5-2026
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Aerospace—Hydraulic filter elements test methods—Part 5: Resistance to flow fatigue
Execute Date: february 2027
Standard published on 2.7.2026
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GB/T 46719.6-2025
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Aerospace—Hydraulic filter elements test methods—Part 6Initial cleanliness level
Standard published on 2.12.2025
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GB/T 4672-2003
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Reciprocating internal combustion engines--Hand-operated control devices--Standard direction of motion
Standard published on 19.5.2003
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GB/T 46720-2025
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General technical specification for bogies of urban rail transit vehicles
Standard published on 31.10.2025
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GB/T 46721-2025
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Approach of classification and statistics for diving accidents
Standard published on 31.10.2025
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GB/T 46722-2025
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Hexagonal self-locking nuts with MJ threads for aerospace—Dimensions
Standard published on 2.12.2025
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GB/T 46723-2025
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Nuts,anchor,self-locking,floating,single lug,with counterbore and MJ threads for aerospace—Dimensions
Standard published on 2.12.2025
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