1.1 本规程适用于使用电感耦合等离子体原子发射光谱法（ICP-AES）测定核废料浸出产生的渗滤液水溶液中的低浓度和微量元素。 1.2 核废料可以是模拟的（非放射性）固体废料形式或实际的固体放射性废料。 1.3 渗滤液可以是去离子水或任何含有少于1 % 总溶解固体。 1.4 在ICP-AES的使用、光谱和非光谱干扰的解释及其校正程序方面有经验的分析师应使用此做法。 1.5 由于合适ICP的不同品牌和型号之间存在差异，因此未提供详细的操作说明- AES仪器。相反，分析员应遵循特定仪器制造商提供的说明。该测试方法不涉及不同设备的比较精度或相同品牌和型号的仪器之间的精度。 1.6 本规程包含解释性说明，不属于该方法强制性要求的一部分。 1.7 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.8 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.9 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 这种做法可用于确定使用含水浸出剂从核废料（玻璃、陶瓷、水泥）中浸出的元素浓度。如果核废料具有放射性，则必须使用具有过滤出口气体系统的适当容纳和屏蔽的ICP-AES光谱仪系统，但不需要对实践进行其他更改。浸出剂可以是去离子水或任何含有少于1 % 总固体。 5.2 本规程适用于分析含有1 % 硝酸。可以对其进行修改，以指定使用相同或更高浓度的相同或另一种矿物酸。在这种情况下，在这种实践中唯一需要的改变是每当1时替换优选的酸和浓度值 % 硝酸出现在这里。重要的是，参考溶液和检查溶液的酸类型和含量与待分析的渗滤液溶液紧密匹配。 5.3 本规程可用于使用试验方法分析来自固化体静态浸出试验的浸出液 C1220 .

1.1 This practice is applicable to the determination of low concentration and trace elements in aqueous leachate solutions produced by the leaching of nuclear waste materials, using inductively coupled plasma-atomic emission spectroscopy (ICP-AES). 1.2 The nuclear waste material may be a simulated (non-radioactive) solid waste form or an actual solid radioactive waste material. 1.3 The leachate may be deionized water or any natural or simulated leachate solution containing less than 1 % total dissolved solids. 1.4 This practice should be used by analysts experienced in the use of ICP-AES, the interpretation of spectral and non-spectral interferences, and procedures for their correction. 1.5 No detailed operating instructions are provided because of differences among various makes and models of suitable ICP-AES instruments. Instead, the analyst shall follow the instructions provided by the manufacturer of the particular instrument. This test method does not address comparative accuracy of different devices or the precision between instruments of the same make and model. 1.6 This practice contains notes that are explanatory and are not part of the mandatory requirements of the method. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This practice may be used to determine concentrations of elements leached from nuclear waste materials (glasses, ceramics, cements) using an aqueous leachant. If the nuclear waste material is radioactive, a suitably contained and shielded ICP-AES spectrometer system with a filtered exit-gas system must be used, but no other changes in the practice are required. The leachant may be deionized water or any aqueous solution containing less than 1 % total solids. 5.2 This practice as written is for the analysis of solutions containing 1 % nitric acid. It can be modified to specify the use of the same or another mineral acid at the same or higher concentration. In such cases, the only change needed in this practice is to substitute the preferred acid and concentration value whenever 1 % nitric acid appears here. It is important that the acid type and content of the reference and check solutions closely match the leachate solutions to be analyzed. 5.3 This practice can be used to analyze leachates from static leach testing of waste forms using Test Method C1220 .