1.1本试验方法描述了主要用于根据试验方法D 6997测定通过蒸馏沥青乳液获得的残留物表观粘度的程序 ` . 在仪器能力范围内的任何温度下，也建议在非牛顿沥青上使用。该试验方法有助于表征在试验方法条件下作为剪切速率函数的非牛顿沥青的流变特性。该测试在直开口管粘度计中进行，通常为60 ° C（140 ° F） ，但适用于其他温度。它适用于5至50000 Pa的范围 · s（50至50万P）。 笔记 1-本试验方法的精度基于在60℃下进行的测定 ° C（140 ° F） 。 1.2 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====== 该试验方法有助于表征沥青乳液残留物和非牛顿沥青的流动行为。然而，由于非牛顿粘度值取决于剪切应力水平、其持续时间和材料的剪切历史，因此非牛顿粘度不是唯一的材料特性。相反，它是在测量程序条件下流体粘度计系统的特征参数。因此，只能使用在类似剪切应力和应力历史条件下用类似粘度计测定的表观粘度来比较非牛顿材料的行为。样品制备程序对于测试结果的重复性或再现性尤为重要。

1.1 This test method describes procedures primarily designed to determine the apparent viscosities of residues obtained by distilling asphalt emulsions according to Test Method D 6997 ` . It is also recommended for use on non-Newtonian asphalts at any temperature within the capability of the apparatus. This test method is useful in characterizing rheological properties of non-Newtonian bitumens as a function of shear rate under the conditions of the test method. This test is run in straight open-end tube viscometers, normally at 60 ° C (140 ° F), but is suitable for use at other temperatures. It is applicable over the range from 5 to 50 000 Pa · s (50 to 500 000 P). Note 1—The precision for this test method is based on determinations made at 60 ° C (140 ° F). 1.2 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 ====== This test method is useful for characterizing the flow behavior of asphalt emulsion residues and non-Newtonian bitumens. However, since non-Newtonian viscosity values depend on the level of shearing stress, its duration, and the shear history of the material, a non-Newtonian viscosity is not a unique material property. Instead, it is a parameter which is characteristic of the fluid-viscometer system under the conditions of the measurement procedure. Therefore, comparisons of non-Newtonian material behavior should only be made using apparent viscosities determined in similar viscometers under similar conditions of shearing stress and stress history. Procedures of sample preparation are especially important for repeatability or reproducibility of test results.