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YB/T 5328-2009 Vanadium pentoxide-Determination of vanadium pentoxide content-The potassium permanganate oxidation-ammonium ferrous sulfate titrimetric mehtod 120 (USD) via email in 1-3 business day VALID
GB 3654.1-1983 Methods for chemical analysis of ferroniobium;The paper chromatographic gravimetric method for the determination of niobium and tantalum content 30 (USD) via email in 1-3 business day VALID
GB 3654.7-1983 Methods for chemical analysis of ferroniobium;The methylene blue photometric method for the determination of sulfur content 45 (USD) via email in 1-3 business day ABOLISHED
YB/T 5339-2006 Methods for chemical analysis of ferrophorus The infrared absorption method for the determination of carbon content 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 223.69-2008 Iron steel and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 24583.4-2009 Vanadium—Nitrogen alloy—Determination carbon of content—The infrared absorption method 120 (USD) via email in 1-3 business day ABOLISHED
GB/T 4702.11-1985 Methods for chemical analysis of chromium metal; The alizarin violet spectrophotometric method for the determination of tin content 45 (USD) via email in 1-3 business day VALID
GB/T 223.5-2008 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method 150 (USD) via email in 1-3 business day VALID
GB/T 24198-2009 Ferronickel—Determination of nickel silicon phosphorus manganese cobalt chromium and copper contents—Wavelength dispersive X-ray fluorescence spectrometry(Routine method) 180 (USD) via email in 1-3 business day VALID
GB/T 223.59-2008 Iron steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method 150 (USD) via email in 1-3 business day VALID
GB 3654.3-1983 Methods for chemical analysis of ferroniobium;The gravimetric method for the determination of silicon content 30 (USD) via email in 1-3 business day ABOLISHED
YB/T 5330-2009 Vanadium pentoxid-Determination of iron content-The ortho-phenanthroline spectrophotome method via email in VALID please email coc@codeofchina.com for quotation
GB 4333.7-1984 Methods for chemical analysis of ferrosilicon;The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content 60 (USD) via email in 1-3 business day ABOLISHED
GB/T 5686.4-1998 Methods for chemical analysis of silicomanganese- The phosphomolybdenum blue photometric method for the determination of phosphorus content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8704.5-2007 Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method 180 (USD) via email in 1-3 business day VALID
GB/T 7730.1-1987 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese--The potentiometric method for the determination of manganese content 45 (USD) via email in 1-3 business day ABOLISHED
GB 8704.3-1988 45 (USD) via email in 1-3 business day ABOLISHED
GB 223.31-1984 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 24514-2009 Zinc and/or aluminium based coatings on steel—Determination of coating mass per unit area and chemical composition—Gravimetry,inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry 420 (USD) via email in 1-3 business day VALID
GB/T 223.2-1981 Determination of sulphur content in iron,steel and alloy 135 (USD) via email in 1-3 business day ABOLISHED
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