GB/T 44763-2024 Anhydrous neodymium chloride

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 12690.7-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 7:Determination of silicon content GB/T 12690.8-2021 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 8:Determination of sodium content GB/T 12690.15-2018 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 15:Determination of calcium content GB/T 14635-2008 Rare earth metals and their compounds—Determination of total rare earth contents GB/T 14635-2020 Rare earth metals and their compounds—Determination of total rare earth content GB/T 14635.1-1993 Rare earth metals and their compounds—Determination of total rare earth contents—Rare earth oxalate gravimetric method GB/T 14635.2-1993 Rare earth metals and their compounds—Determination of total rare earth contents—EDTA volumetric method GB/T 14635.3-1993 Heavy rare earth metals and their compounds—Determination of total rare earth contents—EDTA volumetric method 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 16484.16-1996 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 16484.20-2009 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 18115.4-2000 Neodymium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium oxide, lutetium oxide and yttrium oxide contents—Inductively coupled plasma atomic emission spectrographic method GB/T 18115.4-2006 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides Neodymium—Determination of lanthanum,cerium,praseodymium,samarium,europium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium and yttrium contents GB/T 18115.4-2021 Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 4:Determination of lanthanum,cerium,praseodymium,samarium,europium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium and yttrium contents in neodymium metal and oxide GB 39176-2020 Rare earth products packing,marking,transport and storage JJG 1154-2018 Karl Fischer Volumetric Titrators for Water Content