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GB/T 223.10-2000 Methods for chemical analysis of iron, steel and alloy-The cupferron separation-chrome azurol S photometric method for the determination of aluminium content 105 (USD) via email in 1-3 business day ABOLISHED
GB/T 7731.11-1988 Methods for chemical analysis of ferrotungsten-The coulometric method for the determination of carb 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 223.72-1991 Methods for chemical analysis of iron, steel and alloy The alumina chromatographic separation-barium sulfate gravimetric method for the determination of sulphur content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7731.9-2008 Ferrotungsten - Determination of bismuth content - The bismuth iodide photometric method and inductively coupled plasma - atomic emission spectrometry 180 (USD) via email in 1-3 business day VALID
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
GB/T 5687.8-1988 Methods for chemical analysis of ferro-chromium; The infrared absorption method for the determination of sulfur content 45 (USD) via email in 1-3 business day ABOLISHED
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/T 4702.17-1988 Methods for chemical analysis of chromium metal; The combustion-neutralization titration method for the determination of sulfur content 60 (USD) via email in 1-3 business day ABOLISHED
GB 223.22-1982 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 20127.2-2006 Steel and alloy - Determination of trace element contents Part2: Determination of arsenic content by hydride generation-atomic fluorescence spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 24194-2009 Ferrosilicon—Determination of aluminium calcium manganese chromium titanium copper phosphorus and nickel content—Inductively coupled plasma atomic emission spectrometric method 240 (USD) via email in 1-3 business day VALID
GB/T 34209-2017 Stainless steel—Determination of multi-element contents—Glow discharge optical emission spectrometry 420 (USD) via email in 1-3 business day VALID
GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy.The extraction seperation-The dimethylglyoxime spectrophotometric method for the determination of nickel content 75 (USD) via email in 1-3 business day ABOLISHED
GB/T 223.4-2008 Alloyed steel - Determination of manganese content - Potentiometric or visual titration method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 4699.7-1988 Methods for chemical analysis of silicochromium; The combustion-neutralization titration method for the determination of sulfur content 60 (USD) via email in 1-3 business day ABOLISHED
GB/T 4701.7-1985 Methods for chemical analysis of ferrotitanium; The molybdenum blue spectrophotometric method for the determination of phosphorus content 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
GB/T 223.55-2008 Iron steel and alloy - Determination of tellurium content - Oscillo-polarographic method 105 (USD) via email in 1-3 business day
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
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