1.1 本试验方法包括未使用润滑油中添加元素的定量测定，如 表1 . 1.2 该测试方法仅限于使用能量色散X射线荧光（EDXRF）光谱仪，该光谱仪使用X射线管进行激发，并能够分离相邻元素的信号。 1.3 该测试方法使用根据经验校准数据计算的元素间校正因子。 1.4 该试验方法不适用于在润滑油中存在的浓度下测定镁和铜。 1.5 本试验方法不包括含有氯或钡作为添加剂的润滑油。 1.6 该测试方法可供不熟练X射线光谱法的人员使用。它旨在用作生产控制分析的常规测试方法。 1.7 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制定适当的安全、健康和环境实践，并确定监管限制对使用的适用性。 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 一些油是用有机金属添加剂配制的，例如，这些添加剂可以作为洗涤剂、抗氧化剂和抗磨剂。其中一些添加剂含有一种或多种这些元素:钙、磷、硫和锌。该试验方法提供了一种测定这些元素浓度的方法，这反过来又提供了这些油的添加剂含量的指示。 5.2 润滑油中添加了几种添加元素及其化合物，以提供有益的性能( 表2 ). 5.3 本试验方法主要用于润滑油中添加元素的监测制造场所。 它也可以用于中央实验室和研究实验室。

1.1 This test method covers the quantitative determination of additive elements in unused lubricating oils, as shown in Table 1 . 1.2 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. 1.3 This test method uses interelement correction factors calculated from empirical calibration data. 1.4 This test method is not suitable for the determination of magnesium and copper at the concentrations present in lubricating oils. 1.5 This test method excludes lubricating oils that contain chlorine or barium as an additive element. 1.6 This test method can be used by persons who are not skilled in X-ray spectrometry. It is intended to be used as a routine test method for production control analysis. 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 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 Some oils are formulated with organo-metallic additives, which act, for example, as detergents, antioxidants, and antiwear agents. Some of these additives contain one or more of these elements: calcium, phosphorus, sulfur, and zinc. 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 This test method is primarily intended to be used at a manufacturing location for monitoring of additive elements in lubricating oils. It can also be used in central and research laboratories.