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GB/T 16484.13-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 13: Determination of ammonium chloride content - Distillation-titrimetry 90.0 via email in 1~3 business day abolished
GB/T 14352.6-1993 Methods for chemical analysis of tungsten ores molybdenum ores. Determination of cadmium content. Flame atomic absorption spectrometric method 45.0 via email in 1~3 business day abolished
YS/T 540.5-2006 Vanadium -- Determination of iron content -- Isoanyl alcohol extraction spectrophotometric method 30.0 via email in 1~3 business day valid
YS/T 520.1-2007 Chemical analysis of gallium Part 1 Determination of copper content The 2 9-dimethyl-4 7-diphenyl-1 10-phenanthroline spectrophotometric method 90.0 via email in 1~3 business day valid
GB 8221.2-1987 30.0 via email in 1~3 business day superseded
XB/T 611-2009 Chemical analysis methods of rare earth oxalate - Determination of ignition loss content - Gravimetry 90.0 via email in 1~3 business day valid
GB/T 4324.9-1984 Methods for chemical analysis of tungsten;The dimethylglyoxime gravimetric method for the determination of nickel content 15.0 via email in 1~3 business day abolished
GB/T 2592.9-1981 Thallium;Determination of silicon content;Isoamyl alcohol extraction molybdenum blue absorption photometric method 15.0 via email in 1~3 business day abolished
GB/T 23594.2-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates - Part 2: Determination of fifteen rare earth oxide relative contents - Inductively coupled plasma emission spectrometry 180.0 via email in 1~3 business day valid
YS/T 540.2-2006 Vanadium -- Determination of chromium content -- Diphenylcarbazide spectrophotometric method 45.0 via email in 1~3 business day valid
GB/T 4375.1-1984 Methods for chemical analysis of gallium;The 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline photometric method for the determination of copper content 30.0 via email in 1~3 business day abolished
GB/T 12690.17-2010 Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides—Part 17:Determination of niobium and tantalum contents of rare earth metals 180.0 via email in 1~3 business day valid
GB/T 8639.4-1988 Vanadium; Determination of iron content; Phenanthroline spectrophotometric method 30.0 via email in 1~3 business day superseded
GB/T 14634.6-2010 Test methods of rare earth three-band phosphors for fluorescent lamps—Part 6:Determination of specific surface area 110.0 via email in 1~3 business day valid
HB 7716.9-2002 Spectrometric analysis of titanium alloys Part 9: Determination of manganese content -- Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 520.12-2006 Methods for chemical analysis of gallium The spectrochemical method for the determination of lead coper nickel aluminum indium and zinc contents 60.0 via email in 1~3 business day superseded
GB/T 8638.8-1988 Nickel base alloy powder; Determination of copper content; Neocuproine-chloroform extraction spectrophotometric method 30.0 via email in 1~3 business day superseded
GB/T 12690.21-1990 Rare-earth metals and their oxides--Determination of phosphorus content--Molybdenum blue spectrophotometric method 30.0 via email in 1~3 business day abolished
YS/T 514.9-2009 Methods for chemical analysis of high titanium slag and rutile—Part 9:Determination of calcium oxide、magnesium oxide、manganese monoxide、phosphorus、chromic oxide and vanadium pentoxide 90.0 via email in 1~3 business day valid
YS/T 555.4-2009 Methods for chemical analysis of molybdenum concentrate—Determination of tin content—Atomic fluorescence spectrometry 90.0 via email in 1~3 business day valid
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