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See Chinese contents: GB/T 4325.7-2013 GB/T 4325.7-2013: Methods for chemical analysis of molybdenum -- Part 7: Determination of iron content- 1, 10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry
This part of GB/T 4325 specifies the method for determining the content of iron in molybdenum. This part applies to the determination of iron content in molybdenum powder, molybdenum bar, molybdenum trioxide, ammonium molybdate. Method 1 measurement range: 0.0005% ~ 0.060%; method 2??s measurement range: 0.0002% ~ 0.100%.
