International Standard
ISO 24181-1:2024
Rare earth — Determination of non-rare earth impurities in individual rare earth metals and their oxides — ICP-AES — Part 1: Analysis of Al, Ca, Mg, Fe and Si
Reference number
ISO 24181-1:2024
ISO 24181-1:2024
Edition 1
2024-08
2024-08
© ISO 2024
Abstract
This document describes procedures for the determination of non-rare earth impurities in individual rare earth metals and their oxides through the use of inductively coupled plasma atomic emission spectroscopy (ICP-AES). Magnesium (Mg), aluminum (Al), silicon (Si), calcium (Ca) and iron (Fe) are included as non-rare earth impurity elements, and the measurement ranges for each impurity element are specified. The applicable measurement range (mass fraction %) of magnesium, aluminum, silicon and calcium is from 0,001 to 0,2, and that of iron is from 0,001 to 0,5. The verified measurement ranges in the interlaboratory tests are described later in this document.
General information
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Status: PublishedPublication date: 2024-08Stage: International Standard published [60.60]
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Edition: 1Number of pages: 11
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Technical Committee :ISO/TC 298ICS :13.030.30
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