1.1 本试验方法涵盖了在规定条件下进行试验时评估车轮轴承润滑脂泄漏趋势的实验室程序。 1.2 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。例外情况是以英寸为单位的仪器尺寸，将其视为标准。 1.3 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。 有关具体的警告声明，请参阅第节 8. . 1.4 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 本试验方法区分了具有明显不同高度的车轮轴承润滑脂- 温度泄漏特性。这并不等同于长期服务测试。 5.2 经证明，该试验方法有助于筛选汽车车轮轴承应用中泄漏倾向的润滑脂。 注1: 熟练操作员可以观察测试期间可能发生的润滑脂特性变化，例如润滑脂状况。泄漏报告为定量值，而润滑脂状况的评估取决于操作员之间的个人判断差异，无法有效用于定量测量。

1.1 This test method covers a laboratory procedure for evaluating leakage tendencies of wheel bearing greases when tested under prescribed conditions. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. The exception is apparatus dimensions, in inches, which are to be regarded as the standard. 1.3 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. For specific warning statements, see Section 8 . 1.4 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 This test method differentiates among wheel bearing greases having distinctly different high-temperature leakage characteristics. It is not the equivalent of longtime service tests. 5.2 This test method has proven to be helpful in screening greases with respect to leakage tendencies for automotive wheel bearing applications. Note 1: It is possible for skilled operators to observe changes in grease characteristics that can occur during the test, such as grease condition. Leakage is reported as a quantitative value, whereas the evaluation of grease condition is subject to differences in personal judgment among operators and cannot be used effectively for quantitative measurements.