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GB 719-1984 Pig iron;sampling for chemical analysis via email in ABOLISHED please email coc@codeofchina.com for quotation
GB 8654.1-1988 Methods for chemical analysis of manganese metal; The ortho-phenanthroline photometric method for the determination of iron content 45 (USD) via email in 1-3 business day ABOLISHED
YB/T 5340-2015 Ferrophosphorus. Determination of carbon content. Gas-volumetric method 144 (USD) via email in 1 business day VALID
GB 7731.5-1987 Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of silicon content 30 (USD) via email in 1-3 business day VALID
YB/T 4199-2009 Vanadium pentoxide-Determination of iron content-The flame atomic absorption spectrometric method via email in VALID please email coc@codeofchina.com for quotation
YB/T 5332-2009 Vanadium pentoxid-Determination of sulfur content-The barium sulphate gravimetric method via email in VALID please email coc@codeofchina.com for quotation
GB 8654.4-1988 Methods for chemical analysis of manganese metal; The perchloric acid dehydration gravimetric method for the determination of silicon content 30 (USD) via email in 1-3 business day ABOLISHED
YB/T 4200-2009 Vanadium pentoxid-Determination of sulphur phosphorus arsenic and iron content-The inductively coupled plasma atomic emission spectrometric method via email in VALID please email coc@codeofchina.com for quotation
YB/T 4217.1-2010 Coatings of the hot dip galvanizing(zinc-aluminum) sheet – Determination of hexavalent Cr content – Spectrophotometric method via email in VALID please email coc@codeofchina.com for quotation
GB 7731.6-1987 Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of arsenic content 45 (USD) via email in 1-3 business day ABOLISHED
YB/T 4529-2016 Nitrogen-bearing ferromanganese—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 4217.2-2010 Coatings of the hot dip galvanizing(zinc-aluminum) sheet – Determination of Hg content – Atomic absorption spectrometric method via email in VALID please email coc@codeofchina.com for quotation
YB/T 5313-2006 Methods for chemical analysis of calcium-silicon The EDTA titrimetric method for the determination of calcium content 45 (USD) via email in 1-3 business day ABOLISHED
YB/T 5335-2006 Methods for chemical analysis of vanadium pentoxide The atomic absorption spectrophotometric method for the determination of sodium oxide and potassium oxide contents 75 (USD) via email in 1-3 business day ABOLISHED
GB 223.46-1989 Methods for chemical analysis of iron, steel and alloy The flame atomic absorption spectrometric methods for the determination of magnesium content via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 4333.5-1984 60 (USD) via email in 1-3 business day ABOLISHED
GB 223.57-1987 Methods for chemical analysis of iron,steel and alloy; The extraction-absorption catalytic polarographic method for the determination of cadmium content 45 (USD) via email in 1-3 business day
YB/T 178.7-2008 Silicon-aluminium alloy and silicon-barium-aluminium alloy-Determination of sulfur content-Infrared absorption method 90 (USD) via email in 1-3 business day VALID
YB/T 4532-2016 Ferrophosphorus—Determination of phosphorus content—Acid-base titration method via email in VALID please email coc@codeofchina.com for quotation
GB 223.29-1984 Methods for chemical analysis of iron,steel and alloy;The xylenol orange photometric method for determination of lead content after carrier precipitation 45 (USD) via email in 1-3 business day ABOLISHED
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