1.1 本试验方法包括通过在空气和水中称重来测定半固体和固体沥青材料的密度。 附注1: 测定半固体和固体沥青材料密度的另一种方法是试验方法 D70/D70M 对于流动性太大而无法使用本方法的材料，使用测试方法 D3142/D3142M . 1.2 以SI单位表示的值应被视为标准。本标准不包括其他计量单位。 1.3 警告- 汞已被美国环境保护署（EPA）和许多州机构指定为可导致中枢神经系统、肾脏和肝脏损伤的有害物质。汞或其蒸气可能对健康有害，并对材料具有腐蚀性。处理汞和汞时应谨慎-包含产品。有关详细信息，请参阅适用的产品安全数据表(SDS)，有关更多信息，请参阅EPA网站-www.epa.gov/mercury/faq.htm。用户应注意，在您所在的州销售汞、含汞产品或两者兼而有之可能被州法律禁止。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。 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》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 密度值用于将体积转换为质量单位，并用于使用实践将测量的体积从测量温度校正为标准温度 D4311/D4311M .

1.1 This test method covers the determination of the density of semi-solid and solid asphalt materials by weighing in air and in water. Note 1: An alternate method for determining the density of semi-solid and solid asphalt materials is Test Method D70/D70M . For materials which are too fluid for use of this method, use Test Method D3142/D3142M . 1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 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 Safety Data Sheet (SDS) for details and 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 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 ====== 5.1 Values of density are used for converting volumes to units of mass, and for correcting measured volumes from the temperature of measurement to a standard temperature using Practice D4311/D4311M .