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GB/T 20975.27-2018 English PDF (GBT20975.27-2018)

GB/T 20975.27-2018 English PDF (GBT20975.27-2018)

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GB/T 20975.27-2018: Methods for chemical analysis of aluminium and aluminium alloys -- Part 27: Determination of cerium, lanthanum, scandium -- Inductively coupled plasma atomic emission spectrometry method
This Part of GB/T 20975 specifies the method for determination of cerium, lanthanum, scandium content in aluminium and aluminium alloys. This Part is applicable to the determination of cerium, lanthanum, and scandium content in aluminium and aluminium alloys. The aluminium in aluminium and aluminium alloys interferes with the determination of cerium, lanthanum, and scandium. The same amount of aluminium is added to the working curve to eliminate the interference. Cerium, lanthanum, and scandium do not interfere with each other, and other coexisting elements do not interfere with the determination. Measurement range: cerium: 0.005%~0.90%; lanthanum: 0.005%~0.50%; scandium: 0.0002%~0.50%.

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