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 (English Version)
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GB/T 16484.21-2009
Scope
This part of GB/T 16484 specifies the determination method for the amount of iron oxide in rare earth chloride and light rare earth carbonate. This section applies to the determination of the amount of iron oxide in rare earth chloride and light rare earth carbonate. Test range: 0.0030% ~ 1.00%.
GB/T 16484.21-2009 history
2009GB/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