1.1 本试验方法涵盖了在室温下测量矩形耐火砖或矩形整体的弯曲（横向）振动模式下的共振频率的程序。根据形状的共振频率、质量（重量）和尺寸计算杨氏模量。 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 虽然赫兹（Hz）是一个国际单位制，但它是从秒推导出来的，秒也是一英寸磅单位。 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。 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====== 4.1 杨氏模量是材料的基本力学性能。 4.2 该试验方法用于确定矩形形状的动态弹性模量。由于试验是非破坏性的，因此可以根据需要将试样用于其他试验。 4.3 该测试方法有助于研究和开发、工程应用和设计、制造过程控制以及制定采购规范。 4.4 该测试方法固有的基本假设是: 1. / 6. 对于不均匀耐火材料来说是典型的。实际泊松比可能不同。

1.1 This test method covers a procedure for measuring the resonance frequency in the flexural (transverse) mode of vibration of rectangular refractory brick or rectangularly shaped monoliths at room temperature. Young's modulus is calculated from the resonance frequency of the shape, its mass (weight), and dimensions. 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 Although the Hertz (Hz) is an SI unit, it is derived from seconds which is also an inch-pound unit. 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. 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 ====== 4.1 Young’s modulus is a fundamental mechanical property of a material. 4.2 This test method is used to determine the dynamic modulus of elasticity of rectangular shapes. Since the test is nondestructive, specimens may be used for other tests as desired. 4.3 This test method is useful for research and development, engineering application and design, manufacturing process control, and for developing purchasing specifications. 4.4 The fundamental assumption inherent in this test method is that a Poisson’s ratio of 1 / 6 is typical for heterogeneous refractory materials. The actual Poisson's ratio may differ.