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

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Scope

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%.

Basic Data

Standard ID	GB/T 20975.27-2018 (GB/T20975.27-2018)
Description (Translated English)	Methods for chemical analysis of aluminium and aluminium alloys - Part 27: Determination of cerium, lanthanum, scandium - Inductively coupled plasma atomic emission spectrometry method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H12
Classification of International Standard	77.120.10
Word Count Estimation	8,882
Date of Issue	2018-05-14
Date of Implementation	2019-02-01
Regulation (derived from)	National Standards Announcement No. 6 of 2018
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the method for determining the content of niobium, tantalum and niobium in aluminum and aluminum alloys. This standard applies to the determination of niobium, tantalum, and niobium in aluminum and aluminum alloys. Aluminum in aluminum and aluminum alloys interferes with the determination of niobium, tantalum, and niobium, and the addition of equal amounts of aluminum is added to the working curve to eliminate interference. The three elements of �� and �� do not interfere with each other, and other coexisting elements do not interfere with the determination. Measurement range: ��: 0.0050% to 0.90%, ��