1.1 本试验方法描述了主要用于根据试验方法测定通过蒸馏沥青乳液获得的残留物表观粘度的程序 D6997 . 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非牛顿沥青在试验方法条件下作为剪切速率函数的流变特性。该测试在直开口管粘度计中进行，通常为60 °C，但适用于其他温度。它适用于5到50000 Pa·s的范围。 注1: 本试验方法的精度基于在60℃下进行的测定 °C。 1.2 除粘度计常数或校准系数（K）外，以国际单位制表示的值应视为标准值。 1.3 警告- 美国环境保护署（EPA）和许多州机构已将汞指定为可导致中枢神经系统、肾脏和肝脏损害的危险物质。汞或其蒸汽可能对健康有害，并对材料具有腐蚀性。处理汞和含汞产品时应小心。有关详细信息，请参阅适用的产品材料安全数据表（MSDS），更多信息请访问美国环保局网站（www.EPA.gov/mercury/faq.htm）。用户应意识到，州法律可能禁止在您所在州销售汞、含汞产品或两者兼有。 1.4 本标准的文本引用了提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 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====== 5.1 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。 注3: 本标准产生的结果质量取决于执行程序的人员的能力以及所用设备的能力、校准和维护。符合规范标准的机构 D3666 通常认为能够胜任和客观的测试、抽样、检查等。本标准的用户应注意遵守规范 D3666 单独使用并不能完全确保可靠的结果。可靠的结果取决于许多因素；遵循规范建议 D3666 或一些类似的可接受指南提供了评估和控制其中一些因素的方法。

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 D6997 . 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 asphalts 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, but is suitable for use at other temperatures. It is applicable over the range from 5 to 50 000 Pa·s. Note 1: The precision for this test method is based on determinations made at 60 °C. 1.2 The values stated in SI units are to be regarded as the standard, except in reference to viscometer constant or calibration factor (K). 1.3 Warning— Mercury has been designated by the United States Environmental Protection Agency (EPA) and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury or its vapor may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheets (MSDS) for details and the EPA’s website (www.epa.gov/mercury/faq.htm) for additional information. Users should be aware that selling mercury, mercury-containing products, or both, in your state may be prohibited by state law. 1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 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 ====== 5.1 This test method is useful for characterizing the flow behavior of asphalt emulsion residues and non-Newtonian asphalts. 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. Note 3: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capacity, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.