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Standards GB - Chinese national standards - Page 230
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 12789.3-2025
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Criteria for nuclear reactor instrumentation—Part 3High temperature gas-cooled reactor
Standard published on 25.4.2025
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GB/T 12789.4-1994
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Criteria for nuclear reactor instrumentation--Part 4:Liquid-metal cooled fast reactors
Standard published on 7.12.1994
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GB/T 1279-2008
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Chemical reagent - Ammonium ironIIIsulfate dodecahydrate
Standard published on 15.5.2008
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GB/T 12790-2008
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Method for identification of documents related to safety class 1E equipment and systems for nuclear power plants
Standard published on 2.7.2008
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GB 12791-2006
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Point type ultraviolet flame detectors
Standard published on 17.7.2006
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GB 12791-2025
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Point-type flame detectors
Execute Date: november 2026
Standard published on 31.10.2025
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GB/T 12793-1991
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Generic specification for installing and removal tools for connectors electrical contact
Standard published on 15.4.1991
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GB/T 12794-1991
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Fixed capacitors for use in electronic equipment--Part 15:Blank detail specification--Tantalum capacitors with non-solid electrolyte and foil electrode--Assessment level E
Standard published on 15.4.1991
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GB/T 12795-1991
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Fixed capacitors for use in electronic equipment--Part 15:Blank detail specification--Tantalum capacitors with non-solid electrolyte and porous anode--Assessment level E
Standard published on 15.4.1991
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GB/T 12796.1-2012
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Permanent ferrite magnets - Part 1: Generic specification
Standard published on 5.11.2012
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