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See Chinese contents: GB/T 223.63-2022 GB/T 223.63-2022: Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method
This document specifies the method for the determination of manganese content in iron, steel and alloy by the sodium (potassium) periodate spectrophotometric method. This document is applicable to the determination of manganese content in iron, steel, high temperature alloy and precision alloy. The range of determination is: 0.001% ~ 4.00%.
