GB/T 16479-2020 Light rare earth carbonate

GB/T 16479-2008 Light rare earth carbonate

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12690.1-2002 Chemical analysis methods for non-RE impurity of rare earth metals and their oxides—Determination of carbon and sulfur contents—High frequency-infrared absorption method GB/T 12690.1-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method GB/T 12690.1-2022 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1:Determination of carbon and sulfur contents—High frequency-infrared absorption method GB/T 12690.2-2002 Chemical analysis methods for non—RE impurity of rare earth metals and their oxides—Determination of ignition loss content of rare earth oxides—Gravimetric method GB/T 12690.2-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 2:Determination of ignition loss content of rare earth oxides—Gravimetric method GB/T 12690.3-2002 Chemical analysis methods for non-RE impurity of rare earth metals and their oxides—Determination of water content of rare earth oxides—Gravimetric method GB/T 12690.3-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 3:Determination of water content of rare earth oxides—Gravimetric method GB/T 12690.4-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of oxygen and nitrogen content—Impulse-infrared and impulse-thermal conductance absorption method GB/T 12690.4-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4:Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co、Mn、Pb、Ni、Cu、Zn、Al、Cr content by inductively coupled plasma mass spectrum method GB/T 12690.5-2017 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5:Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents GB/T 12690.6-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of iron content—Kalium thiocyanate,1,10-phenanthroline spectrophotometric method GB/T 12690.6-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 6:Determination of iron content—Kslium thiocyanate,1,10-Phenanthroline spectrophotometric method GB/T 12690.7-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of silicon content Molybdenum blue spectrophotometric method GB/T 12690.7-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7:Determination of silicon content GB/T 12690.8-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of sodium content—Flame atomic absorption spectrometric method GB/T 12690.8-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content GB/T 12690.9-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of chlorine content Silver nitrate turbidimetric method GB/T 12690.10-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of phosphorus content by molybdenum blue spectrophotometric method GB/T 12690.11-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of magnesium content—Flame atomic absorption spectrometric method GB/T 12690.11-2025 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 11:Determination of magnesium content—Flame atomic absorption spectrometric method GB/T 12690.12-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of thorium content Arsenazo III spectrophotometric method and Inductively coupled plasma mass spectrum method GB/T 12690.12-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 12:Determination of thorium and uranium contents—Inductively coupled plasma mass spectrum method GB/T 12690.13-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of molybdenum and tungsten content—Inductively coupled plasma atomic emission spectrographic method and Inductively coupled plasma mass spectrum method and inductively coupled plasma mass spectrum method GB/T 12690.13-2026 Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides—Part 13:Determination of molybdenum and tungsten content GB/T 12690.14-2006 Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides—Determination of titanium in rare earth metals GB/T 12690.15-2006 Chemical analysis methods for non-rare earth metals and their oxide—Determination of calcium oxide content GB/T 12690.15-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 15:Determination of calcium content GB/T 12690.16-2010 Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides—Part 16:Determination of fluorine content—Ion selective electrode analysis 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 GB/T 12690.18-2017 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 18:Determination of zirconium content GB/T 12690.19-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19:Determination of arsenic and mercury contents GB/T 12690.20-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 20:Determination of minor amounts of fluorine and chlorine in rare earth oxides—Ion chromatography method GB/T 12690.21-2024 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 21:Determination of sulfate radical content in rare earth oxides—Barium sulfate turbidimetry GB/T 12690.28-2000 Rare earth metals and their oxide—Determination of calcium oxide content—Inductively coupled plasma atomic emission spectrographic method GB/T 12690.29-2000 Rare earth metals and their oxide—Determination of cerium oxide content—Fluorescent spectrophotometric method GB/T 16484.1-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of cerium oxide content GB/T 16484.1-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 1:Determination of cerium oxide content—Ammonium ferrous sulfate titrimetry GB/T 16484.2-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of europium oxide content GB/T 16484.2-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 2:Determination of europium oxide content—Inductively coupled plasma mass spectrometry GB/T 16484.3-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide and yttrium content GB/T 16484.3-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 3:Determination of fifteen REO relative contents—Inductively coupled plasma atomic emission spectrometry GB/T 16484.4-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of thorium oxide content GB/T 16484.4-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 4:Determination of thorium oxide content—ArsenazoⅢ spectrophotometry GB/T 16484.5-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of barium oxide content in rare earth chloride GB/T 16484.5-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 5:Determination of barium oxide content—Inductively coupled plasma atomic emission spectrometry GB/T 16484.6-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of calcium oxide content GB/T 16484.6-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 6:Determination of calcium oxide content—Flame atomic absorption spectrometry GB/T 16484.7-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of magnesium oxide content GB/T 16484.7-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 7:Determination of magnesium oxide content—Flame atomic absorption spectrometry GB/T 16484.8-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of sodium oxide content GB/T 16484.8-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 8:Determination of sodium oxide content—Flame atomic absorption spectrometry GB/T 16484.9-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of nickel oxide content GB/T 16484.9-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 9:Determination of nickel oxide content—Flame atomic absorption spectrometry GB/T 16484.10-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of manganese oxide content GB/T 16484.10-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 10:Determination of manganese oxide content—Flame atomic absorption spectrometry GB/T 16484.11-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of lead oxide content GB/T 16484.11-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 11:Determination of lead oxide content—Flame atomic absorption spectrometry GB/T 16484.12-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of sulphate radicle content GB/T 16484.12-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 12:Determination of sulfate radical GB/T 16484.13-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of ammonium chloride content 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 GB/T 16484.13-2017 Chemical analysis methods for rare earth chloride and light rare earth carbonate—Part 13:Determination of ammonium chloride content GB/T 16484.14-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of phosphorus radicle content GB/T 16484.14-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 14:Determination of phosphorus radical content—Phosphorus-antimonate-molybdenum blue spectrophotometry GB/T 16484.15-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of chlorine content in rare earth carbonate GB/T 16484.15-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 15:Determination of chlorine content in light rare earth carbonate—Silver nitrate turbidimetry GB/T 16484.16-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of water insoluble matter content in rare earth chloride GB/T 16484.16-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 16:Determination of water insoluble substance content in rare earth chloride—Gravimetry GB/T 16484.17-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of water content in rare earth carbonate GB/T 16484.18-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of ignition loss content of rare earth carbonate GB/T 16484.18-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 18:Determination of ignition loss content in light rare earth carbonate—Gravimetry GB/T 16484.19-1996 Methods for chemical analysis of rare earth chloride and carbonate—Determination of total rare earth oxide contents GB/T 16484.20-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 20:Determination of nickel oxide, manganese oxide,lead oxide,aluminum oxide,zinc oxide,thorium oxide content— Inductively coupled plasma mass spectrometry GB/T 16484.21-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 21:Determination of iron oxide content—1,10-phenanthroline spectrophotometry GB/T 16484.22-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 22:Determination of zinc oxide content—Flame atomic absorption spectrometry GB/T 16484.23-2009 Chemical analysis methods of rare earth chloride and light rare earth carbonate—Part 23:Determination of acid insoluble substance in light rare earth carbonate—Gravimetry GB/T 17803-1999 Designation system for rare earth products GB/T 17803-2015 Designation system for rare earth products