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GB/T 8704.10-2020 Ferrovanadium—Determination of silicon,manganese,phosphorus,aluminum,copper,chromium,nickel and titanium contents—Inductively coupled plasma atomic emission spectrometric method (USD) via email in 1-3 business day TO BE VALID
GB/T 4701.6-2008 Ferrotitanium - Determination of aluminum content - EDTA titrimetric method (USD) via email in 1-3 business day VALID
GB/T 32786-2016 Pig iron contenting nickel—Determination of iron content—Dichromate titration method (USD) via email in 1-3 business day VALID
GB/T 4702.7-2016 Chromium metal─Determination of nitrogen content─Distillation-nessler reagent spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 28702-2012 Nodularizer for spheroidal graphite cast iron (USD) via email in 1-3 business day VALID
GB 3653.6-1988 Methods for chemical analysis of ferroboron-The reduced molybdoantimonylphosphoric acid photometric method for the determination of phosphorus content (USD) via email in 1-3 business day VALID
GB/T 2272-2020 (USD) via email in 1-3 business day TO BE VALID
YB/T 4114-2003 Low carbon ferrosilicon (USD) via email in 1-3 business day
YB/T 5317-2016 Calcium silicon alloy—Determination of sulfur content—High frequency combustion with infrared absorption method and the combustion-potassium iodate titration method via email in VALID please email coc@codeofchina.com for quotation
GB/T 4702.17-2016 Chromium metal—Determination of oxygen, nitrogen and hydrogen content—Inert gas fusion thermal infrared detection method and conductivity method (USD) via email in 1-3 business day VALID
GB/T 7731.3-2008 Ferrotungsten - Determination of copper content - Bis(cyclohexanone)oxalyldihydrazone photometric method and flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 4138-2004 Rare earth ferrosiliconmagnesium alloy via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 24583.3-2009 Vanadium-Nitrogen alloy-Determination of nitrogen content—The distillation-neutralization titration method (USD) via email in 1-3 business day ABOLISHED
GB/T 21931.1-2008 Nickel ferronickel and nickel alloys - Determination of carbon content - Infrared absorption method after induction furnace combustion (USD) via email in 1-3 business day VALID
GB/T 4333.4-2007 Ferrosilicon—Determination of aluminium content—The chromazurol S spectrophotometric method the EDTA titrimetric method and the flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 24583.6-2009 Vanadium-Nitrogen alloy—Determination of sulfur content—The infrared absorption method (USD) via email in 1-3 business day ABOLISHED
GB/T 5059.2-2014 Ferromolybdenum—Determination of antimony content—Malachite green spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 7731.12-2008 Ferrotungsten - Determination of sulfur content - Infrared absorption method and combustion titration method (USD) via email in 1-3 business day VALID
GB 7731.7-1987 Methods for chemical analysis of ferrotungsten-The phenylfluorone photometric method for the determination of tin content (USD) via email in 1-3 business day ABOLISHED
GB/T 5059.6-2007 Ferromolybdenum—Determination of phosphorus content—Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometrc method (USD) via email in 1-3 business day VALID
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