1.1 本试验方法包括通过旋转圆盘电极原子发射光谱法（RDE-AES）测定用过的润滑油和液压油中的磨损金属和污染物。 1.2 此测试方法可快速指示新的或用过的润滑剂和液压油中是否存在异常磨损和污染。 1.3 本试验方法使用油溶性金属进行校准，并不打算将测定为不溶性颗粒的值与溶解金属定量关联。分析结果取决于粒度，对于使用过的油样中作为大颗粒存在的元素，可能会获得较低的结果。 1.4 该试验方法能够检测和量化由磨损和污染引起的元素，从溶解材料到尺寸约为10μm的颗粒。 1.5 以国际单位表示的数值视为标准值。本标准不包括其他计量单位。 1.5.1 首选单位为mg/kg（ppm质量）。 1.6 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。 1.7 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====== 5.1 用过的润滑油- 确定用过的机油中的碎屑是机器状态监测程序中采用的一种关键诊断方法。如果有用于比较的基线浓度数据，特定磨损金属浓度的存在或增加可以表明磨损的早期阶段。污染物元素的显著增加可能表明润滑剂中存在异物，例如防冻剂或沙子，这可能导致磨损或润滑剂退化。该测试方法可识别金属及其浓度，以便确定与时间或距离相关的趋势，并在发生更严重或灾难性故障之前采取纠正措施。

1.1 This test method covers the determination of wear metals and contaminants in used lubricating oils and used hydraulic fluids by rotating disc electrode atomic emission spectroscopy (RDE-AES). 1.2 This test method provides a quick indication for abnormal wear and the presence of contamination in new or used lubricants and hydraulic fluids. 1.3 This test method uses oil-soluble metals for calibration and does not purport to relate quantitatively the values determined as insoluble particles to the dissolved metals. Analytical results are particle size dependent and low results may be obtained for those elements present in used oil samples as large particles. 1.4 The test method is capable of detecting and quantifying elements resulting from wear and contamination ranging from dissolved materials to particles approximately 10 μm in size. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5.1 The preferred units are mg/kg (ppm by mass). 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 ====== 5.1 Used Lubricating Oil— The determination of debris in used oil is a key diagnostic method practiced in machine condition monitoring programs. The presence or increase in concentration of specific wear metals can be indicative of the early stages of wear if there are baseline concentration data for comparison. A marked increase in contaminant elements can be indicative of foreign materials in the lubricants, such as antifreeze or sand, which may lead to wear or lubricant degradation. The test method identifies the metals and their concentration so that trends relative to time or distance can be established and corrective action can be taken prior to more serious or catastrophic failure.