标准摘要
[中文适用范围]： 本文件描述了使用电感耦合等离子体原子发射光谱法 (ICP-AES) 测定单个稀土金属及其氧化物中的非稀土杂质的程序。镁 (Mg)、铝 (Al)、硅 (Si)、钙 (Ca) 和铁 (Fe) 被列为非稀土杂质元素，并规定了每种杂质元素的测量范围。镁、铝、硅和钙的适用测量范围 (质量分数 %) 为 0.001 至 0.2，铁的适用测量范围为 0.001 至 0.5。本文件后面将介绍实验室间测试中经过验证的测量范围。 [外文原描述]： 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.
英文名称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