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GB 223.42-1985 Methods for chemical analysis of iron,steel and alloy; The anion-exchange separation-bromopyrogallol red photometric method for the determination of tantalum content 60 (USD) via email in 1-3 business day VALID
GB 223.58-1987 Methods for chemical analysis of iron,steel and alloy; The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content via email in VALID please email coc@codeofchina.com for quotation
WM 3011-1987 45 (USD) via email in 1-3 business day ABOLISHED
GB 223.32-1984 60 (USD) via email in 1-3 business day ABOLISHED
GB 3654.6-1983 Methods for chemical analysis of ferroniobium;The combustion iodate volumetric method for the determination of sulfur content 45 (USD) via email in 1-3 business day ABOLISHED
SN/T 2079-2008 Method for analysis of stainless and alloy steels—X-ray fluorescence spectrometry 105 (USD) via email in 1-3 business day VALID
GB 4333.1-1984 Methods for chemical analysis of ferrosilicon;The perchloric acid dehydration-gravimetric method for the determination of silicon content 45 (USD) via email in 1-3 business day ABOLISHED
GB 223.59-1987 Methods for chemical analysis of iron,steel and alloy; The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content 75 (USD) via email in 1-3 business day ABOLISHED
YB/T 5339-2015 Ferrophosphorus. Determination of carbon content. The infrared absorption method 144 (USD) via email in 1 business day VALID
YB/T 4218-2010 Vanadium pentoxide—— Determination of vanadium pentoxide content——The ammonium persulfate oxidation titrimetric method via email in VALID please email coc@codeofchina.com for quotation
GB 223.56-1987 Methods for chemical analysis of iron,steel and alloy; The sulfhydryl cotton fiber separation-oscillopolarographic method for the determination of tellurium content 60 (USD) via email in 1-3 business day ABOLISHED
YB/T 4528-2016 Nitrogen-bearing ferrochromium and nitride ferrochrome with high nitrogen content—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas via email in VALID please email coc@codeofchina.com for quotation
YB/T 5340-2006 Methods for chemical analysis of ferrophorus The gasometric method for the determination of carbon content 375 (USD) via email in 1-3 business day ABOLISHED
GB 223.22-1982 45 (USD) via email in 1-3 business day ABOLISHED
GB 7730.7-1988 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese; The gravimetric method for determination of carbon content 60 (USD) via email in 1-3 business day ABOLISHED
YB/T 178.6-2000 Methods for chemical analysis of silicon-aluminium alloy and silicon-barium-aluminium alloy The infrared absorption method for the determination of carbon content via email in ABOLISHED please email coc@codeofchina.com for quotation
YB/T 5334-2009 Vanadium pentoxid-Determination of arsenic content-The AgDDTC spectrophotometric method via email in VALID please email coc@codeofchina.com for quotation
YB/T 5341-2006 Methods for chemical analysis of ferrophorus The infrared absorption method for the determination of sulfur content 45 (USD) via email in 1-3 business day ABOLISHED
DB37/T 3589-2019 Remanufacturing Test sample preparation method for bonding strength of laser cladding layer and substrate via email in VALID please email coc@codeofchina.com for quotation
GB 7730.9-1988 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese; The combustion-neutralization titration method for the determination of sulfur content 60 (USD) via email in 1-3 business day ABOLISHED
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