1.1 这些试验方法涵盖了沥青混合料和路面样品中沥青结合料含量的定量测定。通过这些方法获得的骨料可用于使用试验方法进行筛分分析 D5444 .本试验不适用于测试含有煤焦油的沥青混合物。 1.2 可使用试验方法回收沥青粘合剂 D1856 实践 D5404/D5404米 ，或练习 D7906 . 1.3 单位-- 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。 1.4 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。 1.5 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。 具体危害见第节 7. . 注1: 通过这些测试方法获得的结果可能会受到测试材料年龄的影响，较老的样品往往会产生略低的沥青结合料含量。 当在混合物和路面制备后不久进行试验时，可获得最佳定量结果。当使用某些骨料时，很难去除所有沥青，并且一些氯化物可能残留在矿物质中，影响测量的沥青含量。 1.6 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====== 4.1 所有这些试验方法可用于定量测定沥青混合料和路面样品中的沥青结合料，用于规范验收、服务评估、控制和研究。 每种方法都规定了可用于测试方法的一种或多种溶剂和任何其他试剂。 注2: 沥青混合料的进一步试验可通过对提取的骨料进行筛分分析，试验方法 D5444 ，或通过试验方法从溶液中回收提取的沥青粘合剂 D1856 实践 D5404/D5404米 ，或练习 D7906 用于沥青结合料性能测试。回收沥青结合料进行性能测试时，应清除废水中的所有矿物质。 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 These test methods cover the quantitative determination of asphalt binder content in asphalt mixtures and pavement samples. Aggregate obtained by these methods may be used for sieve analysis using Test Method D5444 . This test is not appropriate for testing asphalt mixtures containing coal tar. 1.2 Asphalt binder may be recovered using Test Method D1856 , Practice D5404/D5404M , or Practice D7906 . 1.3 Units— 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. 1.4 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. Specific hazards are given in Section 7 . Note 1: The results obtained by these test methods may be affected by the age of the material tested, with older samples tending to yield slightly lower asphalt binder content. Best quantitative results are obtained when the test is made on mixtures and pavements shortly after their preparation. It is difficult to remove all the asphalt when some aggregates are used and some chlorides may remain within the mineral matter affecting the measured asphalt content. 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 ====== 4.1 All of these test methods can be used for quantitative determinations of asphalt binder in asphalt mixtures and pavement samples for specification acceptance, service evaluation, control, and research. Each method prescribes the solvent or solvents and any other reagents that can be used in the test method. Note 2: Further testing of the asphalt mixture may be performed by using sieve analysis on the extracted aggregate, Test Method D5444 , or recovering the extracted asphalt binder from solution by Test Method D1856 , Practice D5404/D5404M , or Practice D7906 for asphalt binder property testing. When recovering the asphalt binder for property testing, all mineral matter should be removed from the effluent. 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.