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GB/T 6730.82-2020 Iron ores—Determination of barium content—EDTA titrimetric method (USD) via email in 1-3 business day TO BE VALID
GB/T 6730.34-2017 Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 6730.80-2019 Iron ores—Determination of mercury content—Cold atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.44-2017 Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 6730.46-1986 Methods for chemical analysis of iron ores; The extraction separation-molybdenum blue photometric method for the determination of arsenic content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.37-2017 Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method (USD) via email in 1-3 business day VALID
SN/T 0832-1999 Determination of iron silicon calcium manganese aluminium titanium magnesium and phosphorus in iron ores for import and export—Wavelength dispersive X-ray fluorescence spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.75-2017 Iron ores—Determination of sodium content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.60-2005 Iron ores—Determination of nickel content—Flame atomic absorption spectrometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YB/T 4267-2011 Division of production grade for iron ores via email in please email coc@codeofchina.com for quotation
GB/T 6730.31-2017 Iron ores—Determination of vanadium—N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method (USD) via email in 1-3 business day VALID
GB/T 6730.10-2014 (USD) via email in 1-3 business day VALID
GB/T 6730.14-2017 Iron ores—Determination of calcium content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 36704-2018 Iron ore concentrate (USD) via email in 1-3 business day VALID
GB/T 10322.3-2000 Iron ores--Experimental methods for checking the precision of sampling (USD) via email in 1-3 business day VALID
GB 6730.17-1986 Methods for chemical analysis of iron ores; The combustion iodometric method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB/T 6730.33-1986 Methods for chemical analysis of iron ores; The oscilloscopic polarography method for the determination of tin content (USD) via email in 1-3 business day ABOLISHED
YS/T 1047.1-2015 Methods for chemical analysis of copper magnetite—Part 1:Determination of copper content—2,2-biquinoly spectrophotometric method and flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB/T 6730.16-2016 Iron ores—Determination of sulfur content—Barium sulfate gravimetric method (USD) via email in 1-3 business day VALID
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