1.1 本试验方法包括未使用的润滑油和添加剂包装中钡、硼、钙、铜、镁、钼、磷、硫和锌的定量测定。 1.2 精度声明适用于稀释，其中溶剂中样品的质量百分比在1范围内保持恒定 % 至5 % 按油的质量。 1.3 精度表定义了实验室间研究中涵盖的浓度范围。然而，低浓度和高浓度均可通过该试验方法确定。低浓度限值取决于ICP仪器的灵敏度和稀释因子。高浓度限值由线性校准曲线定义的最大浓度与样品稀释系数的乘积确定。 1.4 如果仪器可以在180 nm的波长下工作，则可以测定硫。 1.5 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 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。 1.7 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====== 4.1 这种测试方法通常需要每个样品几分钟。本试验方法涵盖八种元素，因此提供了比试验方法更多的元素组成数据 D4628 或试验方法 D4927 . 此外，该试验方法提供了比试验方法更准确的结果 D5185 ，用于使用过的润滑油和基础油。 4.2 添加剂包装是单个添加剂的混合物，可以用作洗涤剂、抗氧化剂、抗磨剂等。许多添加剂包含本试验方法涵盖的一种或多种元素。添加剂包装规格部分基于元素组成。润滑油通常是添加剂包的混合物，其规格也部分由元素组成决定。本试验方法可用于确定添加剂包装和未使用的润滑油是否符合元素组成方面的规范。 4.3 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1 ).

1.1 This test method covers the quantitative determination of barium, boron, calcium, copper, magnesium, molybdenum, phosphorus, sulfur, and zinc in unused lubricating oils and additive packages. 1.2 The precision statements are valid for dilutions in which the mass % sample in solvent is held constant in the range of 1 % to 5 % by mass of oil. 1.3 The precision tables define the concentration ranges covered in the interlaboratory study. However, both lower and higher concentrations can be determined by this test method. The low concentration limits are dependent on the sensitivity of the ICP instrument and the dilution factor. The high concentration limits are determined by the product of the maximum concentration defined by the linear calibration curve and the sample dilution factor. 1.4 Sulfur can be determined if the instrument can operate at a wavelength of 180 nm. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. 1.7 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 ====== 4.1 This test method usually requires several minutes per sample. This test method covers eight elements and thus provides more elemental composition data than Test Method D4628 or Test Methods D4927 . In addition, this test method provides more accurate results than Test Method D5185 , which is intended for used lubricating oils and base oils. 4.2 Additive packages are blends of individual additives, which can act as detergents, antioxidants, antiwear agents, and so forth. Many additives contain one or more elements covered by this test method. Additive package specifications are based, in part, on elemental composition. Lubricating oils are typically blends of additive packages, and their specifications are also determined, in part, by elemental composition. This test method can be used to determine if additive packages and unused lubricating oils meet specifications with respect to elemental composition. 4.3 Several additive elements and their compounds are added to the lubricating oils to give beneficial performance ( Table 1 ).