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Standards GB - Chinese national standards - Page 132
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 11682-2026
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Low background alpha and/or beta measuring instruments
Execute Date: april 2027
Standard published on 28.9.2026
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GB/T 11684-2003
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Electromagnetic environment conditions and testing procedures for nuclear instrumentation
Standard published on 14.4.2003
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GB/T 11685-2003
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Measurement procedures for semiconductor X-ray detector system and semiconductor X-ray energyspectrometers
Standard published on 7.7.2003
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GB/T 11686.1-2025
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Small craft—Waste systems—Part 1: Waste water retention systems
Standard published on 5.10.2025
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GB/T 11693-2008
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Welded bed plate for flanges of ship pipe
Standard published on 20.10.2008
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GB/T 11693-2022
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Welded bed plate for flanges of ship pipe
Standard published on 12.10.2022
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GB/T 11698-2008
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Metal valves for use in marine flanged pipe systems - Face-to-face and center-to-face dimensions
Standard published on 30.7.2008
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GB/T 11698-2026
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Face-to-face and centre-to-face dimensions of marine flanged metal valves
Execute Date: january 2027
Standard published on 28.9.2026
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GB/T 11699-2008
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Small craft with inboard engine - Propeller shaft ends and bosses
Standard published on 5.3.2008
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GB/T 117-2000
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Taper pins
Standard published on 26.9.2000
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