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Standards GB - Chinese national standards - Page 4734
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 4701.1-2009
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Ferrotitanium - Determination of titanium content - The ammonium ferric sulfate titration method
Standard published on 30.10.2009
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GB/T 4701.10-2025
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Ferrotitanium—Determination of sulfur content—Infrared absorption method and combustion-neutralization titration method
Standard published on 2.12.2025
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GB/T 4701.12-2024
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Ferrotitanium—Determination of titanium content—Diantipyrylmethane spectrophotometric method
Standard published on 25.4.2024
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GB/T 4701.13-2024
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Ferrotitanium—Determination of silicon, manganese, phosphorus,chromium, aluminum, magnesium, copper, vanadium, and nickel contents—Inductively coupled plasma atomic emission spectrometric method
Standard published on 25.4.2024
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GB/T 4701.2-2009
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Ferrotitanium - Determination of silicon content - The sulphuric acid dehydration gravimetric method
Standard published on 8.7.2009
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GB/T 4701.3-2009
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Ferrotitanium - Determination of copper content - The DDTC photometric method and the flame atomic absorption spectrometric method
Standard published on 8.7.2009
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GB/T 4701.4-2008
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Ferrotitanium - Determinatino of manganese content - Arsenite-salt and sodium-salt titrimetric method and periodate photometric method
Standard published on 13.5.2008
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GB/T 4701.6-2008
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Ferrotitanium - Determination of aluminum content - EDTA titrimetric method
Standard published on 13.5.2008
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GB/T 4701.7-2009
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Ferrotitanium - Determination of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
Standard published on 8.7.2009
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GB/T 4701.8-2009
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Ferrovanadium - Determination of carbon content - The infrared absorption method
Standard published on 8.7.2009
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