1.1 本试验方法涵盖了使用Falex粘性分析装置（TAA）测量润滑脂螺纹长度和拉力的程序。该测试的数据可用于表征润滑脂的内聚性、粘附性和粘性，以及回缩速度和温度的变化。 1.2 单位-- 以国际单位制表示的值应被视为标准值。本标准不包括其他计量单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。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，并确定监管限制的适用性。 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 该方法用于使用所述仪器表征润滑脂，以获得该方法中定义的螺纹长度和拉脱力等性能的定量测量值。这些性能是在该方法定义的重复和一致的测试条件下测量的。本标准使用铜球将单个螺纹与润滑脂体积隔离开来（参见 图2 ). 以前，粘性是通过主观方法在没有控制收缩速度或温度的情况下进行定性评估的，也可以通过间接方法如水洗、锤击等进行定性评估。一种广泛使用的快速测试称为手指测试（见 图2 ). 手指测试表明润滑脂粘性存在重大差异，特别是螺纹形成，但它缺乏控制，并且对操作员的执行是主观的。它不会产生可用于分类或比较润滑脂的定量数据。 图2 定性“手指测试”中的螺纹形成（左）和仪器压痕回缩实验中铜球隔离单螺纹（右） 5.2 该测试标准将允许测量定量数据，以表征润滑脂。测试结果可以与润滑脂现场应用的要求相关联，并用于规范中，其重要性由该方法的用户确定。 5.3 在应用中，螺纹形成可以是理想的或不理想的质量。例如，工业机械、农业和汽车设备、开式齿轮和一个滑动表面需要更高的粘性，在这些地方，触点之间的油脂转移和更新对于保持润滑至关重要。另一方面，低粘性可能有利于食品工业加工机器的润滑，因为油脂转移会导致产品污染，应避免。

1.1 This test method covers a procedure for measuring the thread length and pull of force of lubricating greases, using the Falex Tackiness Analyzing Apparatus (TAA). Data from this test can be used to characterize cohesive, adhesive, and tackiness properties of lubricating greases, with respect to changes in retraction speed and temperature. 1.2 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 This method is used to characterize a grease using the described instrument to obtain a quantitative measurement of properties defined in this method as thread length and pull-off force. These properties are measured under repetitive and consistent testing conditions as defined by this method. This standard uses a copper ball to isolate a single thread out of a grease volume (see Fig. 2 ). Previously, tackiness was evaluated qualitatively by subjective methods without controlled retraction speeds or temperatures, or by indirect methods such as water washout, hammer impact, etc. A widely used quick test is known as the finger test (see Fig. 2 ). The finger test indicates major differences in grease tackiness, specifically the thread formation, but it lacks control and is subjective to the operator's execution. It does not result in quantitative data that can be used to classify or compare lubricating greases. FIG. 2 Thread Formation Illustrated in Qualitative ‘Finger Test’ (left) and Copper Ball Isolating a Single Thread in Instrumented Indentation-retraction Experiment (right) 5.2 This test standard will allow quantitative data to be measured for the characterization of lubricating greases. The test results can be correlated with requirements of field applications of lubricating grease and for use in specifications, the significance is to be determined by the user of this method. 5.3 In applications, thread formation can be a desirable or undesirable quality. For example, a higher tackiness is desired in industrial machinery, agricultural and automotive equipment, open gears and one sliding surfaces, where transfer and refreshment of the grease between contacts is essential to maintain lubrication. On the other hand, low tackiness may be favorable in lubrication of processing machines in food industry, where grease transfer can cause contamination of the product and should be avoided.