1.1 本试验方法包括测量试验方法中使用的表观密度杯体积的程序 第212页 , 第329页 和 B417型 . 1.2 表观密度杯，尤其是其边缘，在使用过程中可能会磨损，建议定期（至少每6个月）检查杯的体积，以确保其符合规定的体积。 1.3 单位- 除用于确定密度的密度和质量值外，使用克每立方厘米（g/cm 3. )而克（g）单位是长期的行业惯例，以国际单位制为单位的数值应视为标准。 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 该试验方法可测量表观密度杯的体积，以确保其符合25.00的规定体积 厘米 3. ±0.03厘米 3. （圆柱形杯），或16.39 厘米 3. ±0.05厘米 3. （方形杯）。使用不合规格的杯子将使用试验方法中的公式给出错误的表观密度值 第212页 , 第329页 和 B417型 .

1.1 This test method covers a procedure for measuring the volume of the apparent density cups used in Test Methods B212 , B329 , and B417 . 1.2 The apparent density cup, particularly its rim, may become worn during use, and it is recommended that the volume of the cup be checked periodically (at least every 6 months) in order to ensure that it complies with the specified volume. 1.3 Units— With the exception of the values for density and the mass used to determine density, for which the use of the gram per cubic centimetre (g/cm 3 ) and gram (g) units is the long standing industry practice, the values in SI units are to be regarded as 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 ====== 5.1 This test method enables the measurement of the volume of the apparent density cup to ensure that it complies with the specified volume of 25.00 cm 3 ± 0.03 cm 3 (cylindrical cup), or 16.39 cm 3 ± 0.05 cm 3 (square cup). Use of an out-of-specification cup will give erroneous apparent density values using the formulae in Test Methods B212 , B329 , and B417 .