1.1 本试验方法涵盖了乳化沥青在储存过程中保持均匀分散的能力。它适用于主要由半固体或液体沥青基、水和乳化剂组成的乳化沥青。 1.2 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（不包括表格和图表中的注释和脚注）不应被视为本标准的要求。 1.4 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。 1.5 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====== 3.1 该试验方法可用于在相对较短的时间内确定乳化沥青的储存稳定性或沉降。它是对色散随时间变化的持久性的衡量，但不应被解释为对使用中涉及的其他稳定性方面具有重要意义。 注1: 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 通常认为能够进行合格和客观的测试、取样、检验等。本标准的使用者应注意遵守规范 D3666 单独使用并不能完全保证可靠的结果。可靠的结果取决于许多因素；遵循规范的建议 D3666 或者一些类似的接受准则提供了一种评估和控制其中一些因素的方法。

1.1 This test method covers the ability of an emulsified asphalt to remain as a uniform dispersion during storage. It is applicable to emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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. 1.5 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 ====== 3.1 This test method is useful for determining, in a comparatively short time, the storage stability or settlement of an emulsified asphalt. It is a measure of the permanence of the dispersion as related to time, but it is not to be construed to have significance as a measure of other stability aspects involved in use. Note 1: 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 acceptance guideline provides a means of evaluating and controlling some of those factors.