标准编号:	XB/T 617.2-2014
中文名称:	钕铁硼合金化学分析方法 第2部分：十五个稀土元素量的测定 电感耦合等离子体原子发射光谱法
英文名称:	Chemical analysis methods of neodymium iron boron alloy. Part 2:Determination of fifteen REO relative contents
行业分类:	XB    稀土行业标准
ICS分类:	77.120.99 77.120.99    其他有色金属及其合金 77.120.99
发布机构:	中华人民共和国工业和信息化部
发布日期:	2014-10-14
实施日期:	2015-4-1
标准状态:	valid
翻译语言:	英文

XB/T 617.2-2014 Chemical analysis methods of neodymium iron boron alloy - Part 2: Determination of fifteen REO relative contents 1 Scope This part of XB/T 617 specifies the methods for the determination of fifteen REO relative contents in neodymium iron boron alloy, including Method 1: Inductively coupled plasma atomic emission spectrometry; Method 2: X-ray fluorescence spectrometry. This part is applicable to the determination of fifteen REO relative contents in neodymium iron boron alloy. The determination range of Method 1 is shown in Table 1, and that of Methods 2 is shown in Table 2. Table 1 Table 2 2 Method 1: Inductively coupled plasma atomic emission spectrometry 2.1 Principle The test portion is digested with aqua regia. With the resulting solution being diluted to a dilute acid medium, the REO relative contents are directly determined by inductively coupled plasma emission spectrometry and calculated accordingly. 2.2 Reagents and materials 2.2.1 Y2O3, ω(REO)>99.5%, ω(Y2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.2 La2O3, ω(REO)>99.5%, ω(La2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.3 Ce2O3, ω(REO)>99.5%, ω(Ce2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.4 Pr2O3, ω(REO)>99.5%, ω(Pr2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.5 Nd2O3, ω(REO)>99.5%, ω(Nd2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.6 Sm2O3, ω(REO)>99.5%, ω(Sm2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.7 Eu2O3, ω(REO)>99.5%, ω(Eu2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.8 Gd2O3, ω(REO)>99.5%, ω(Gd2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.9 Tb2O3, ω(REO)>99.5%, ω(Tb2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.10 Dy2O3, ω(REO)>99.5%, ω(Dy2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.11 Ho2O3, ω(REO)>99.5%, ω(Ho2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.12 Er2O3, ω(REO)>99.5%, ω(Er2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.13 Tm2O3, ω(REO)>99.5%, ω(Tm2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.14 Yb2O3, ω(REO)>99.5%, ω(Yb2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.15 Lu2O3, ω(REO)>99.5%, ω(Lu2O3/REO)>99.99%, ignited at 900°C for 1 h. 2.2.16 H2O2 (30%).

Contents Foreword i 1 Scope 2 Method 1: Inductively coupled plasma atomic emission spectrometry 3 Method 2: X-ray fluorescence spectrometry 4 Quality assurance and quality control