1.1 本规程涵盖了从以下配置中获取趋势性在役润滑脂样本的方法，包括电动阀、齿轮箱、轴台轴承、电机、外露轴承、开式齿轮或失效的润滑脂润滑部件。 1.2 在某些情况下，可能需要从一台设备上采集多个样本，以获得更具趋势的结果。例如，大型轴承不能完全旋转，例如回转轴承，或者在其他情况下不会发生充分混合的轴承。 1.3 以上述方式采集的样品可能需要混合以形成更均匀的样品。这也可能适用于其他样品，例如从开式轴承中采集的样品。 1.4 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。例外情况是标准英制单位螺纹，没有公制等效螺纹。 注1: 标准管螺纹指的是国家管螺纹锥螺纹。 1.5 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。 1.6 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 本规程通常用于从机器上获取在用润滑脂样本。 4.2 在本实践中，概述了一种一致且可重复的方法，用于从以下应用中获取趋势样本，包括电动阀、齿轮箱、轴台轴承、电机、外露轴承、开式齿轮或失效的油脂润滑部件。这允许分析和检查在用润滑脂，这有助于预测润滑脂润滑部件的寿命和状况。这些信息可以与其他技术相结合，如红外成像、振动分析和超声波振动分析，以预测机器何时可能出现故障。 通过上述分析获得的知识，除了从在役润滑脂分析和检查中获得的知识外，还可以帮助预测润滑脂润滑的部件故障，作为预测性维护计划的一部分，从而允许更多的整体正常运行时间。预测失效的润滑脂润滑部件也将提高部件周围所有工作人员的安全水平。

1.1 This practice covers the method to obtain a trendable in-service lubricating grease sample from the following configurations including motor-operated valves, gearboxes, pillow-block bearings, electric motors, exposed bearings, open gears, or failed grease-lubricated components. 1.2 In some cases, it may be necessary to take more than one sample from a piece of equipment to obtain more trendable results. Examples of this could be a large bearing that does not fully rotate, such as a slew bearing, or one in which sufficient mixing does not otherwise occur. 1.3 Samples taken in the above manner may need to be mixed to form a more homogeneous sample. This may also be true of other samples such as those taken from open face bearings. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. The exception to this is a standard English units thread for which there is no metric equivalent. Note 1: The standard pipe thread referred to is the national pipe thread tapered thread. 1.5 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. 1.6 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 practice is typically used to obtain in-service lubricating grease samples from machinery. 4.2 In this practice, a consistent and repeatable method is outlined for obtaining trendable samples from the following applications including motor-operated valves, gearboxes, pillow-block bearings, electric motors, exposed bearings, open gears, or failed grease-lubricated components. This allows for analysis and inspection of in-service lubricating grease that aids in predicting the life and condition of the grease-lubricated component. This information can be combined with other technologies such as infrared imaging, vibration analysis, and ultrasonic vibration analysis to predict when a machine may fail. The knowledge gained by the aforementioned analyses, in addition to the knowledge gained from the in-service lubricating grease analysis and inspection, may allow for more overall uptime by aiding in the prediction of grease-lubricated component failures as part of a predictive maintenance schedule. The prediction of a failing grease-lubricated component will also improve the level of safety of all who work around the component.