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YB/T 067-1995 Silicon-calcium-barium-aluminium alloy (USD) via email in 1-3 business day ABOLISHED
GB/T 16477.4-1996 Methods for chemical analysis of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy-Determination of silica content (USD) via email in 1-3 business day ABOLISHED
YB/T 5036-1993 Ferrophosphorus (USD) via email in 1-3 business day ABOLISHED
GB/T 16477.1-1996 Methods for chemical analysis of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy-Determination of total rare earth content (USD) via email in 1-3 business day ABOLISHED
GB/T 5687.1-1985 Methods for chemical analysis of ferro-chromium; The ammonium persulfate oxidation volumetric method for the determination of chromium content (USD) via email in 1-3 business day ABOLISHED
GB/T 7731.14-2008 Ferrotungsten - Determination of lead content - The polarographic method and inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 16477.5-1996 Methods for chemical analysis of rare earth ferrosilicon alloy and rare earth ferrosilicon magnesium alloy-Determination of titanium content (USD) via email in 1-3 business day ABOLISHED
GB/T 4701.3-1984 Methods for chemical analysis of ferrotitanium;The DDTC photometric method for the determination of copper content (USD) via email in 1-3 business day ABOLISHED
GB/T 3649-2008 Ferromolybdenum (USD) via email in 1-3 business day VALID
YB/T 5342-2015 Ferrophosphorus. Determination of sulfur content. The combustion-neutralization titration method via email in VALID please email coc@codeofchina.com for quotation
GB/T 4702.15-2016 Chromium metal—Determination of lead,tin,bismuth,antimony and arsenic content—Inductively coupled plasma mass spectrometric method (USD) via email in 1-3 business day VALID
YB/T 5335-2009 Vanadium pentoxid-Determination of sodium oxide and potaiumss oxide content-The flame atomic absorption spectrometric method via email in VALID please email coc@codeofchina.com for quotation
YB/T 065-1995 Silicon-aluminium alloy (USD) via email in 1-3 business day ABOLISHED
GB/T 7738-1987 Notations for designation of ferroalloys (USD) via email in 1-3 business day ABOLISHED
YB/T 4136-2005 Manganese-nitrogen alloy (USD) via email in 1-3 business day VALID
GB/T 3650-2008 The general rules for inspection packing storing transportation marking and certification of ferroalloy (USD) via email in 1-3 business day VALID
GB 7731.4-1987 Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of phosphorus content (USD) via email in 1-3 business day VALID
GB/T 7731.6-2008 Ferrotungsten - Determination of arsenic content - The molybdenum blue photometrie method and inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB/T 4699.6-2008 Ferrochromium and silicochromium - Determination of sulfur content - The infrared absorption method and the combustion-titration method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 24583.2-2009 Vanadium—Nitrogen alloy—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas (USD) via email in 1-3 business day ABOLISHED
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