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GB/T 7731.12-2008 Ferrotungsten - Determination of sulfur content - Infrared absorption method and combustion titration method 120.0 via email in 1~3 business day valid
GB/T 8704.6-2007 Ferrovanadium—Determination of silicon content—The sulphuric acid dehydration gravimetric method 120.0 via email in 1~3 business day valid
GB/T 4702.1-1997 Methods for chemical analysis of chromium metal the ammonium ferrous sulfate-volumetric method for the determination of chromium content 90.0 via email in 1~3 business day to be abolished
GB/T 31927-2015 Zinc and aluminum based coatings on steel sheets and strips― Determination of lead and cadmium contents―Inductively coupled plasma mass spectrometric method 165.0 via email in 1~3 business day valid
GB/T 8704.6-1994 Methods for chemical analysis of ferrovanadium. The sulphuric acid dehydration-gravimetric method for the determination of silicon content 30.0 via email in 1~3 business day abolished
GB/T 24213-2009 General rules for original position statistic distribution analysis method 180.0 via email in 1~3 business day valid
YB/T 5340-2015 Ferrophosphorus. Determination of carbon content. Gas-volumetric method via email in business day valid
GB/T 4333.2-1988 Methods for chemical analysis of ferrosilicon-The reduced molybdobismuthylphosphoric acid photometric method for the determination of phosphorus content 60.0 via email in 1~3 business day valid
GB/T 20127.9-2006 Steel and alloy - Determination of trace element contents Part 9: Determination of scandium content by inductively coupled plasma atomic emission spectrometric method 105.0 via email in 1~3 business day valid
GB 223.69-1989 via email in business day superseded
GB 223.26-1989 Methods for chemical analysis of iron steel and alloy; The thiocyanate direct photometric method for the Determination of molybderum content 45.0 via email in 1~3 business day abolished
GB/T 5687.10-2006 Ferrochromium - Determination of manganese content - Flame atomic absorption sspectrometric method 60.0 via email in 1~3 business day valid
GB/T 24194-2009 Ferrosilicon—Determination of aluminium calcium manganese chromium titanium copper phosphorus and nickel content—Inductively coupled plasma atomic emission spectrometric method 210.0 via email in 1~3 business day valid
GB/T 21933.2-2008 Ferronickel - Determination of silicon content - Gravimetric method 90.0 via email in 1~3 business day valid
GB/T 24520-2009 Cast iron and low alloy steel—Determination of lanthanum, cerium and magnesium content—Inductively coupled plasma atomic emission spectrometric method 240.0 via email in 1~3 business day valid
GB/T 223.62-1988 Methods for chemical analysis of iron, steel and alloy; The butyl acetate extraction photometric method for the determination of phosphorus content 60.0 via email in 1 business day valid
GB/T 4701.1-2009 Ferrotitanium—Determination of titanium content—The ammonium ferric sulfate titration method 180.0 via email in 1~3 business day valid
YB/T 5333-2006 Methods for chemical analysis of vanadium pentoxide The oscillopolarographic method for the determination of sulphur content 45.0 via email in 1~3 business day abolished
YB/T 4475-2015 Steel sheets and strips. Analysis of zinc-and alumnium-based metallic coatings. Glow-discharge optical-emission spectrometric method via email in business day valid
GB/T 5686.7-2008 Ferromanganese ferromanganese-silicon nitrogen-bearing ferromanganese and manganese metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization method 150.0 via email in 1~3 business day valid
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