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See Chinese contents: GB/T 223.26-2008 GB/T 223.26-2008: Iron, steel and alloy -- Determination of molybdenum content -- The thiocyanate spectrophotometric method
This part of GB/T 223 specifies the determination of molybdenum by thiocyanate direct spectrophotometry and thiocyanate-butyl acetate extraction spectrophotometry. The method-1 of this part is applicable to the determination of molybdenum content of 0.10%~2.00% (mass fraction) in medium-and-low alloy steel, hightemperature alloy steel, precision alloy. The method-2 of this part is applicable to the determination of molybdenum content of 0.0025% ~ 0.20% (mass fraction) in pig iron, carbon steel, alloy steel.
