1.1 本试验方法涵盖了液体沥青、道路油和液体沥青蒸馏残留物运动粘度的测定程序，所有这些粘度均为60 °C[140 °F]和135下的液体沥青粘合剂 °C[275 °F]（见表注释， 11.1 )在6至100000毫米的范围内 2. /s[cSt]。 1.2 当测试材料在测试温度下的密度已知或可以确定时，该测试方法的结果可用于计算粘度。看见 附件A1 计算方法。 注1: 该试验方法适用于其他温度和较低运动粘度下，但其精度基于60°C下对液体沥青和道路油的测定 °C[140 °F]和135°F的沥青结合料 °C[275 °F]仅在30至6000 mm的粘度范围内 2. /s[cSt]。 注2: 改性沥青结合料或经过处理或回收的沥青结合料通常不- 牛顿在本试验条件下。根据该方法确定的粘度是在假设沥青结合料在本试验条件下表现为牛顿流体的情况下确定的。当毛细管中的流动是非牛顿的时，用这种方法确定的剪切速率可能是无效的。可以通过使用具有不同尺寸毛细管的粘度计测量粘度来验证测试条件下非牛顿行为的存在。中定义的精度限制 11.1 可能不适用于非牛顿沥青粘合剂。 1.3 警告 汞已被美国环境保护局（EPA）和许多州机构指定为可导致中枢神经系统、肾脏和肝脏损伤的危险物质。汞或其蒸汽可能对健康有害，并对材料具有腐蚀性。处理汞和汞时应小心- 含有产品。有关详细信息，请参阅适用的产品材料安全数据表或安全数据表以及EPA网站--http://www.epa.gov/mercury/faq.htm--以获取更多信息。用户应意识到，在您所在的州销售汞和/或含汞产品可能受到州法律的禁止。 1.4 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值可能不是完全相等的；因此，每个系统应独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.5 本标准的文本引用了提供解释性材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应被视为本标准的要求。 1. 6. 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.7 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 运动粘度表征流动行为。该方法用于确定液体沥青的稠度，作为确定运输或供应来源一致性的一个因素。规格通常在60和135的温度下 °C。 注3: 本标准产生的结果的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 通常被认为能够胜任和客观的测试、取样、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；遵循规范的建议 D3666 或者一些类似的可接受的指导方针提供了评估和控制其中一些因素的手段。

1.1 This test method covers procedures for the determination of kinematic viscosity of liquid asphalts, road oils, and distillation residues of liquid asphalts all at 60 °C [140 °F] and of liquid asphalt binders at 135 °C [275 °F] (see table notes, 11.1 ) in the range from 6 to 100 000 mm 2 /s [cSt]. 1.2 Results of this test method can be used to calculate viscosity when the density of the test material at the test temperature is known or can be determined. See Annex A1 for the method of calculation. Note 1: This test method is suitable for use at other temperatures and at lower kinematic viscosities, but the precision is based on determinations on liquid asphalts and road oils at 60 °C [140 °F] and on asphalt binders at 135 °C [275 °F] only in the viscosity range from 30 to 6000 mm 2 /s [cSt]. Note 2: Modified asphalt binders or asphalt binders that have been conditioned or recovered are typically non-Newtonian under the conditions of this test. The viscosity determined from this method is under the assumption that asphalt binders behave as Newtonian fluids under the conditions of this test. When the flow is non-Newtonian in a capillary tube, the shear rate determined by this method may be invalid. The presence of non-Newtonian behavior for the test conditions can be verified by measuring the viscosity with viscometers having different-sized capillary tubes. The defined precision limits in 11.1 may not be applicable to non-Newtonian asphalt binders. 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 Sheet (MSDS) or Safety Data Sheet (SDS) for details and the EPA’s website—http://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 values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.6 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. 1.7 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 The kinematic viscosity characterizes flow behavior. The method is used to determine the consistency of liquid asphalt as one element in establishing the uniformity of shipments or sources of supply. The specifications are usually at temperatures of 60 and 135 °C. Note 3: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, 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.