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See Chinese contents: GB/T 38812.1-2020 GB/T 38812.1-2020: Direct reduced iron--Determination of iron(Ⅱ) content--The potassium dichromate titrimetric method after decomposition of sample by ferric chloride
This Part of GB/T 38812 specifies the potassium dichromate titrimetric method after decomposition of sample by ferric chloride to determine the iron (II) content. This Part applies to the determination of iron (II) content in direct reduced iron; the determination range (mass fraction): 1.00% ~ 40.00%.
