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JB/T 9220.11-1999 Chemical analysis methods for acid slay of cupola - Determination of sulphur by volumetric method using combustion of potassium iodare via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14203-1993 General rule for photoelectric emission spectroscopic analysis of iron, steel and alloy via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7737-1997 Ferroniobium (USD) via email in 1-3 business day ABOLISHED
GB/T 5687.9-1988 Methods for chemical analysis of ferro-chromium; The combustion-neutralization titration method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
JB/T 9220.8-1999 Chemical analysis methods for acid slay of cupola - Determination of magnesium oxide by DDTC separation process and EDTA volumetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 4701.1-1984 Methods for chemical analysis of ferrotitanium;The ammonium ferric sulfate volumetric method for the determination of titanium content (USD) via email in 1-3 business day ABOLISHED
YB/T 547.1-1995 Methods for chemical analysis of vanadium slag—The ammonium ferrous sulfate titrimetric method for the determination of vanadium pentoxide content (USD) via email in 1-3 business day ABOLISHED
JB/T 9220.4-1999 Chemical analysis methods for acid slay of cupola - Determination of manganous oxide by volumetric method using sodium arsenite-sodium nitrite via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 5687.6-1988 Methods for chemical analysis of ferro-chromium; The coulometric method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 18249-2000 Ferroalloys-Experimental methods for checking the bias of sampling and sample preparation (USD) via email in 1-3 business day VALID
GB/T 5059.5-2014 Ferromolybdenum—Determination of silicon content—Sulphuric acid dehydration gravimetric method and molybdenum blue spectrophotometric method (USD) via email in 1-3 business day VALID
JB/T 9228-1999 Spheroidizers for spheroidal graphite cast irons via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 21932-2008 Nickel and ferronickel - Determination of sulphur content - Barium sulfate gravimctric method after alumina chromatographic separation via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 30061-2013 Ferromanganese-silicon nitride (USD) via email in 1-3 business day VALID
GB/T 7731.7-2008 Ferrotungsten - Determination of tin content - Phenylfluorone photometric method and inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 4701.7-2009 Ferrotitanium—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 4009-1989 Chromium silicon via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 4702.2-2008 Chromium metal - Determination of silicon content - The perchloric acid gravimetric method (USD) via email in 1-3 business day VALID
GB 3654.6-1983 Methods for chemical analysis of ferroniobium;The combustion iodate volumetric method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB/T 4701.8-1988 Methods for chemical analysis of ferrotitanium; The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
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