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GB/T 24520-2009 Cast iron and low alloy steel—Determination of lanthanum, cerium and magnesium content—Inductively coupled plasma atomic emission spectrometric method (USD) via email in 1-3 business day VALID
GB/T 24583.5-2009 Vanadium-Nitrogen alloy—Determination of phosphorus content—The bismuth molybdenum blue spectrophotometry method (USD) via email in 1-3 business day ABOLISHED
GB/T 8704.8-1994 Methods for chemical analysis of ferrovanadium. The chromazurol S photometric method and EDTA volumetric method for determination of aluminium comtent (USD) via email in 1-3 business day ABOLISHED
GB/T 5686.5-1988 Methods for chemical analysis of silicomanganese alloy; The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 5687.5-1988 Methods for chemical analysis of ferro-chromium; The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 3653.4-1988 Methods for chemical analysis of ferroboron-The EDTA volumetric method for the determination of aluminium content (USD) via email in 1-3 business day ABOLISHED
YB/T 4220-2010 Vanadium pentoxide —Determination of sodium oxide and potaiumss oxide content—The inductively coupled plasmaatomic emission spectrometry via email in VALID please email coc@codeofchina.com for quotation
GB/T 24583.4-2019 Vanadium-nitrogen—Determination of carbon content—Infrared absorption method (USD) via email in 1-3 business day VALID
GB/T 20127.3-2006 Steel and alloy - Determination of trace element contents Part3:Determination of calcium,magnesium,barium content by inductively coupled plasma atomic emission spectrometric method (USD) via email in 1-3 business day VALID
GB/T 21933.3-2008 Ferronickel - Determination of cobalt content - Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB 223.45-1985 (USD) via email in 1-3 business day ABOLISHED
GB/T 223.73-1991 Methods for chemical analysis of iron, steel and alloy The titanium trichloride-potassium dichromate volumetric method for the determiination of iron content via email in 1-3 business day ABOLISHED 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 223.10-1991 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 32794-2016 Pig iron contenting nickel - Determination of nickel, cobalt, chromium, copper, phosphorus content - Inductively coupled plasma atomic emission spectrometry (USD) via email in 1 business day VALID
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
GB/T 7315.3-1987 Methods for chamical analysis of vanadium pentixide-The ortho-phenanthroline spectrophotometric method forthe determination of iron content (USD) via email in 1-3 business day ABOLISHED
GB/T 223.64-1988 Methods for chemical analysis of iron, steel and alloy; The flame atomic absorption spectrometric method for the determination of manganese content (USD) via email in 1-3 business day ABOLISHED
GB 223.37-1989 Methods for chemical analysis of iron steel and alloy; The indophenal blue photometric methods for the determination of nitrogen content after distillation separation (USD) via email in 1-3 business day VALID
GB/T 20127.13-2006 Steel and alloy - Determination of trace element contents Part 13: Determination of tin content by iodide extraction-phenylfluorone photometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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