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GB/T 24583.8-2019 Vanadium-nitrogen—Determination of silicon,manganese,phosphorus,aluminum content—Inductively coupled plasma atomic emission spectrometric method (USD) via email in 1-3 business day VALID
GB/T 4702.6-1984 Methods for chemical analysis of chromium metal;The EDTA volumetric method for the determination of aluminum content (USD) via email in 1-3 business day ABOLISHED
GB/T 24234-2009 Cast iron—Determination of multi-element contents—Spark discharge atomic emission spectrometric method (Routine method) (USD) via email in 1-3 business day VALID
GB 7731.5-1987 Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of silicon content (USD) via email in 1-3 business day VALID
GB/T 4333.6-2019 Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 7730.5-2000 Methods for chemical analysis of ferromaganese and blast furnace ferromanganese--The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 4702.2-1984 Methods for chemical analysis of chromium metal;The perchloric acid dehydration-gravimetric method for the determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 8654.9-1988 Methods for chemical analysis of manganese metal-The coulometric method for the determination (USD) via email in 1-3 business day ABOLISHED
GB/T 36164-2018 High alloy steel—Determination of multi-element contents—X-ray fluorescence spectrometry(routine method) (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/T 4701.10-1988 Methods for chemical analysis of ferrotitanium; The infrared absorption method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB 8654.4-1988 Methods for chemical analysis of manganese metal; The perchloric acid dehydration gravimetric method for the determination of silicon content (USD) via email in 1-3 business day ABOLISHED
GB/T 223.7-2002 Iron powder--Determination of iron content--Potassium dichromate titration method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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 (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
GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method (USD) via email in 1-3 business day VALID
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