1.1 这些测试方法包括两个程序，用于通过Falex销和V形块测试机对流体润滑剂的承载性能进行初步评估。 附注1: 更多信息可在 附录X1 关于摩擦系数、负载计转换和负载计校准曲线。 1.2 以英寸-磅单位表示的值应被视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 两种测试方法的评估区分了具有低、中和高水平极压特性的流体。用户应该在任何一种方法的结果和服务性能之间建立任何相关性。 附注3: 两种测试方法对所涵盖流体的相对评级 表X2.1 和 表X2.2 与试验方法中涵盖的在这些相同流体上获得的四球焊接点相对额定值基本一致 D2783 .

1.1 These test methods cover two procedures for making a preliminary evaluation of the load-carrying properties of fluid lubricants by means of the Falex Pin and Vee Block Test Machine. Note 1: Additional information can be found in Appendix X1 regarding coefficient of friction, load gauge conversions, and load gauge calibration curve. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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. 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 Evaluations by both test methods differentiate between fluids having low, medium, and high levels of extreme-pressure properties. The user should establish any correlation between results by either method and service performance. Note 3: Relative ratings by both test methods on the fluids covered in Table X2.1 and Table X2.2 are in good general agreement with four-ball weld-point relative ratings obtained on these same fluids, covered in Test Method D2783 .