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GB/T 4333.5-1997 Methods for chemical analysis of ferrosilicon-the EDTA volumetric method for the determination of aluminium content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5059.3-1985 Methods for chemical analysis of ferromolybdenum; The atomic absorption spectrophotometric method for the determination of copper content (USD) via email in 1-3 business day ABOLISHED
YB/T 4174.1-2008 Silicon-calcium alloy-Determination of aluminum content-Inductively coupled plasma atomic spectrometric method (USD) via email in 1-3 business day VALID
YB/T 109.2-1997 Methods for chemical analysis of barium-silicon the barium svlphate gravimetric method for the detemination of barium content (USD) via email in 1-3 business day ABOLISHED
GB/T 4701.4-1984 Methods for chemical analysis of ferrotitanium;The persulfate-arsenite volumetric method for the determination of manganese content (USD) via email in 1-3 business day ABOLISHED
GB/T 7730.1-2002 Ferromanganese and blast furnace ferromanganese--Determination of manganese content--Potentiometric method and titrimetric method after ammonium nitrate oxidation via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8704.1-2009 Ferrovanadium—Determination of carbon content—The infrared absorption method and the gasometric method (USD) via email in 1-3 business day VALID
GB/T 223.31-1994 Methods for chemical analysis of iron, steel and alloy The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7315.1-1987 Methods for chemical analysis of vanadium pentoxide-The potassium permanganate oxidation-ammonium ferrous sulfate titrimetric method for the determination of vanadium pentoxide content (USD) via email in 1-3 business day ABOLISHED
YB/T 5313-2016 Calcium silicon alloy—Determination of calcium content—EDTA titrimetric method via email in VALID please email coc@codeofchina.com for quotation
GB/T 30072-2013 Ferronickel—Determination of nickel content—EDTA titrimetric method (USD) via email in 1-3 business day VALID
GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method (USD) via email in 1-3 business day VALID
DB37/T 3590-2019 Remanufacturing Test method for bonding strength of laser cladding layer and substrate via email in VALID please email coc@codeofchina.com for quotation
YB/T 178.3-2000 Methods for chemical analysis of silicon-aluminium alloy and silicon-barium-aluminium alloy The EDTA titrimetric method ofr the determination of aluminium content (USD) via email in 1-3 business day ABOLISHED
GB/T 8705.1-1988 Methods for chemical analysis of ferrophosphorus; The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 3653.1-1988 Methods for chemical analysis of ferroboron; The alka-limetric method for the determination of boron content (USD) via email in 1-3 business day VALID
GB/T 5059.9-1988 Methods for chemical analysis of ferromolybdenum; The infrared absorption method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB 223.38-1985 Methods for chemical analysis of iron,steel and alloy; The anion-exchange separation-gravimetric method for the determination of niobium content (USD) via email in 1-3 business day VALID
GB/T 24583.1-2019 Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method (USD) via email in 1-3 business day VALID
GB/T 8704.6-2007 Ferrovanadium—Determination of silicon content—The sulphuric acid dehydration gravimetric method (USD) via email in 1-3 business day VALID
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