1.1 本试验方法涵盖了在风洞装置中测定混凝土和粘土屋顶砖对模拟风效应的阻力的程序。采用70 mph（31 m/s）至130 mph（58 m/s）的模拟风速。 1.2 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。 1.3 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1 众所周知，在风洞装置中模拟的风的观察效应与从自然风中观察到的效应有关。在本试验中，瓷砖对模拟风的阻力与瓷砖应用于屋顶时对自然风影响的阻力有关。瓷砖抵抗自然风和模拟风影响的一个因素是制造商说明书中规定的连接方法。本试验方法确定了当瓷砖根据制造商的说明连接到屋顶板部分时，由于模拟风而产生的上举力。 自然风条件在强度、持续时间和湍流方面有所不同；这些条件超出了本试验方法模拟的范围。

1.1 This test method covers a procedure to determine the resistance of concrete and clay roof tiles to simulated wind effects in a wind-tunnel apparatus. Simulated wind velocities of 70 mph (31 m/s) to 130 mph (58 m/s) are employed. 1.2 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. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 4.1 It is known that the observed effects of wind simulated in a wind-tunnel apparatus are related to the effects observed from natural wind. The resistance of tiles to simulated wind in this test relates to the resistance of the tiles to the effects of natural wind when they are applied to a roof. One factor in the resistance of the tiles to the effects of both natural and simulated wind is the method of attachment specified in the manufacturer's instructions. This test method determines the uplift forces acting as a result of the simulated wind when tile are attached to a section of roof deck in accordance with the manufacturer's instructions. Natural wind conditions differ with respect to intensity, duration, and turbulence; these conditions are beyond the means of this test method to simulate.