1.1 本试验方法涵盖了确定现场建筑中使用的地板和屋顶护套在承受集中静载荷以及非刚性钝物体冲击载荷的情况下的抗挠度和损伤能力的程序。它适用于木材和木质面板和板材，但不适用于覆盖成型金属甲板，也不适用于预制或现浇板。表面压痕不与挠度分开评估。 1.2 涵盖三种应用:屋顶护套、底层地板和单层地板。屋顶护套在干燥和潮湿条件下进行测试，而底层地板和单层地板均在干燥条件下以及潮湿后干燥的条件下进行试验。 这些潮湿条件是现场施工中常见的条件。 注1: 预计在施工和使用过程中，护套只会受到干燥条件的影响，或者会受到比 7.3.2 相应的暴露条件可通过相关方之间的协议进行修改。例如，工厂建造的建筑只能在干燥条件下进行测试，但应考虑在使用过程中暴露于高湿度或泄漏和洪水的可能性。 1.3 以英寸磅单位表示的值应视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 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《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====== 5.1 概述的程序将提供数据，这些数据可用于评估集中荷载下屋顶和地板护套的结构性能，与框架的影响分开，在代表实际使用情况的模拟条件下。 5.2 该程序适用于直接安装在框架上的屋顶或地板护套材料。它们不用于评估整个框架组件。

1.1 This test method covers procedures for determining the resistance to deflection and damage of floor and roof sheathing used in site-built construction subjected to concentrated static loads as well as impact loads from nonrigid blunt objects. It is applicable to wood and wood-based panels and boards, but is not intended to cover profiled metal decks, nor precast or cast-in-place slabs. Surface indentation is not evaluated separately from deflection. 1.2 Three applications are covered: roof sheathing, subfloors, and single floors. Roof sheathing is tested in both a dry and a wet condition, while subfloors and single floors are both tested in a dry condition, as well as a condition of having dried out after being wet. These moisture conditions are those commonly experienced with site-built construction. Note 1: Where it is anticipated that sheathing will be subjected only to dry conditions during construction and use, or else to greater moisture exposure than is indicated in 7.3.2 , the corresponding exposure conditions may be modified by agreement between the interested parties. For example, shop-built construction may be tested dry only, although the possibility of exposure to high humidity or leaks and flooding during use should be considered. 1.3 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. 1.4 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 The procedures outlined will provide data that can be used to evaluate the structural performance, under concentrated loads, of roof and floor sheathing, separate from the effects of the framing, under simulated conditions representative of those in actual service. 5.2 The procedures are intended to be applied to roof or floor sheathing materials installed directly to framing. They are not intended for the evaluation of the framed assembly as a whole.