1.1 本试验方法涵盖了沥青挥发性百分比的测定。 1.2 由于该测试方法是经验性的，因此有必要严格遵守该程序。 1.3 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.3.1 例外情况- 特殊铝块的直径以英寸为单位。 1.4 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。 1.5 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====== 4.1 该测试有助于评估和表征沥青物理特性，比较运输和供应来源的一致性。

1.1 This test method covers the determination of the percent of pitch volatility. 1.2 Since this test method is empirical, strict adherence to the procedure is necessary. 1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are given for information only. 1.3.1 Exceptions— The diameter of a special aluminum block is measured in inches. 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 ====== 4.1 This test is useful in evaluating and characterizing pitch physical properties in comparing the consistency of shipments and sources of supply.