1.1 本试验方法包括测定和评估新润滑脂和在用润滑脂的流动特性、磨损程度、污染物和氧化条件。 1.2 本试验方法为评估在用润滑脂样品（NLGI等级00至3）的磨损、稠度、污染和氧化提供了指导。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3.1 例外情况- 例外情况是，参考单位由测试设备的开发人员开发，并且需要报告测试结果。 1.4 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 5.1 润滑脂的磨损、污染、稠度和氧化特性趋势是状态监测程序的关键部分。这些特性的变化或与新润滑脂的偏差可能表明润滑部件内存在问题，例如混合不兼容的增稠剂类型、过度磨损或污染物水平，或抗氧化剂水平显著降低。 这些测试方法还可以开发趋势，用于在故障发生之前预测故障，并允许采取纠正措施。

1.1 This test method covers the determination and evaluation of flow properties, wear levels, contaminants, and oxidative condition of new and in-service lubricating grease. 1.2 This test method provides guidance on evaluating in-service grease samples, NLGI grades 00 to 3, for wear, consistency, contamination, and oxidation. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3.1 Exception— The exception to this will be where units of references were developed by the developers of the test equipment and necessary to report the results of the test. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 5.1 Trending the wear, contamination, consistency, and oxidative properties of a lubricating grease are a crucial part of condition monitoring programs. Changes in these properties or deviations from the new grease can be indicative of problems within the lubricated component, such as the mixing of incompatible thickener types, excessive wear or contaminant levels, or significant depletion of antioxidant levels. These test methods also makes it possible to develop trends that can be used to predict failures before they occur and allow for corrective action to be taken.