1.1 本试验方法涵盖了测定耐火材料形状的体积密度和体积的基本程序。本试验适用于所有已燃烧或未燃烧的耐火材料形状或整体，与成分或成型方法无关，包括熟化和水合的材料。它特别适用于确定成型后复杂形状的体积密度和体积，因为可以在几分钟内获得结果。 1.2 单位- 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.2.1 例外情况- 本标准中使用的天平仅适用于国际单位制（章节 3 – 6. ). 1.3 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。 有关具体的危险声明，请参阅 3.2 . 1.4 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====== 2.1 本试验方法可用于快速测定任何形状耐火材料的体积和体积密度，前提是其具有足够的结构完整性，允许搬运。因此，它可以用于未燃烧或燃烧、坚固或易碎的形状。 2.2 由于该测试可以快速进行，它已被应用于制造过程中控制以及耐火成品的表征。也可用于在其他试验或服务暴露后检查样本。

1.1 This test method covers the basic procedure for determining bulk density and volume of refractory shapes. This test is applicable to all refractory shapes or monoliths, burned or unburned, independent of composition or forming method, including materials that slake and hydrate. It is particularly suitable for determining bulk density and volume of complex shapes after forming, since results may be obtained in a matter of minutes. 1.2 Units— The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.2.1 Exception— The balance used in this standard is only available in SI units (Sections 3 – 6 ). 1.3 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. For a specific hazard statement, see 3.2 . 1.4 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 ====== 2.1 This test method may be used to quickly determine volume and bulk density of a refractory of any shape, provided it has sufficient structural integrity to permit handling. Thus it may be used on unfired or fired, strong or friable shapes. 2.2 Since the test may be performed quickly, it has found application as manufacturing in-process control as well as in characterizing finished refractory products. Also it may be used to examine specimens after other test or service exposure.