Chemical analysis methods of rare earth impurities in rare earth metals and their oxides—Part 6:Determination of lanthanum,cerium,praseodymium,neodymium,samarium,gadolinium,terbium,dysprosium,holmium,erbium,thulium,ytterbium,lutetium and yttrium contents in europium metal and oxide
Chemical analysis method of lanthanum-cerium metals and their compounds—Part 1: Determination of cerium content—Ammonium ferrous sulfate titration method
Methods for chemical analysis of nickel alloys—Part 1: Determination of chromium content—Potentiometric titration method with ammonium iron(II) sulfate