1.1 本试验方法涵盖未使用润滑油和添加剂包装中添加剂元素的定量测定，如所示 表1 . 1.2 分析前，添加剂包装需要用无污染稀释剂（基础油）稀释。必须根据预期浓度计算稀释系数，以使所有元素的浓度都在表1中列出的范围内 表1 . 1.3 某些润滑油的浓度将高于中列出的最大浓度 表1 . 分析前，这些样品需要用无污染稀释剂（基础油）稀释。必须根据预期浓度计算稀释系数，以使所有元素的浓度都在表1中列出的范围内 表1 . 1.4 本试验方法仅限于使用能量色散X射线荧光（EDXRF）光谱仪，该光谱仪采用X射线管进行激发，并能够通过使用高分辨率半导体探测器分离相邻元素的信号。 1.5 该测试方法使用根据基本参数（FP）方法或其他矩阵校正方法计算的元素间校正系数。 1.6 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.6.1 首选浓度单位为mg/kg或质量%。 1.7 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户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。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 润滑油由有机金属添加剂配制而成，例如作为洗涤剂、抗氧化剂、消泡剂或抗磨剂，或其组合。 其中一些添加剂包含以下一种或多种元素:镁、磷、硫、氯、钙、锌和钼。本试验方法提供了一种测定这些元素浓度的方法，进而提供了这些油添加剂含量的指示。 5.2 将几种添加剂元素及其化合物添加到润滑油中，以提供有益的性能( 表2 ). 5.3 添加剂包是用于混合润滑油的浓缩物。 5.4 本试验方法主要用于监测润滑油中的添加剂元素。 5.5 如果本试验方法适用于基质与本试验方法中规定的校准材料明显不同的润滑油，则第节中的注意事项和建议 6. 在解释结果时应遵守。

1.1 This test method covers the quantitative determination of additive elements in unused lubricating oils and additive packages, as shown in Table 1 . 1.2 Additive packages require dilution with a contamination free diluent (base oil) prior to analysis. The dilution factor has to be calculated from the expected concentrations to bring the concentrations for all elements into the ranges listed in Table 1 . 1.3 Some lubrication oils will contain higher concentrations than the maximum concentrations listed in Table 1 . These samples require dilution with a contamination free diluent (base oil) prior to analysis. The dilution factor has to be calculated from the expected concentrations to bring the concentrations for all elements into the ranges listed in Table 1 . 1.4 This test method is limited to the use of energy dispersive X-ray fluorescence (EDXRF) spectrometers employing an X-ray tube for excitation in conjunction with the ability to separate the signals of adjacent elements by using a high resolution semiconductor detector. 1.5 This test method uses inter-element correction factors calculated from a fundamental parameters (FP) approach or from another matrix correction method. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6.1 The preferred concentration units are mg/kg or mass %. 1.7 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. 1.8 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 Lubricating oils are formulated with organo-metallic additives, which act, for example, as detergents, antioxidants, antifoaming, or antiwear agents, or a combination thereof. Some of these additives contain one or more of the following elements: magnesium, phosphorus, sulfur, chlorine, calcium, zinc, and molybdenum. This test method provides a means of determining the concentrations of these elements, which in turn provides an indication of the additive content of these oils. 5.2 Several additive elements and their compounds are added to the lubricating oils to give beneficial performance ( Table 2 ). 5.3 Additive packages are the concentrates that are used to blend lubricating oils. 5.4 This test method is primarily intended to be used for the monitoring of additive elements in lubricating oils. 5.5 If this test method is applied to lubricating oils with matrices significantly different from the calibration materials specified in this test method, the cautions and recommendations in Section 6 should be observed when interpreting the results.