GB/T 18882.2-2017 Chemical analysis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content (English Version)
2017GB/T 18882.2-2017 Chemical analysis methods for mixed rare earth oxide of ion-absorpted type rare earth ore—Part 2:Determination of aluminum oxide content
2008GB/T 18882.1-2008 Chemical analysis methods of mixed rare earth oxide of ion-absorpted type RE ore.Determination of fifteen REO relative content
2002GB/T 18882.2-2002 Chemical analysis methods for mixed rare earth oxide of ion-absorpted type RE ore-Determination of fifteen REO relative content--X-ray fluorescence spectrometric method