1.1 本试验方法包括在规定的预处理、温度、相对湿度和试验技术条件下，用标准形状试样测定金属或木材粘接组件在弯曲应力下的比较性能。试样和测试技术的设计目的是在施加载荷时，在试样层板之间产生很大一部分剪切力，而不是像其他ASTM弯曲性能测试方法那样，将剪切应力降至最低。 该方法不适用于由非刚性粘附物制成的组件。获得的数据不适用于设计工作。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 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====== 5.1 本试验方法适用于木材和金属粘结试样。 5.2 该试验方法提供了一种比较组件之间弯曲性能的方法。 5.3 通过中给出的公式将数据简化为可比较的基础 11.1 和 11.2 . 人们认识到，这些公式并不严格适用于以本方法所述方式进行的测试，而是仅用于将数据减少到可比较的基础上。

1.1 This test method covers the determination of the comparative properties of either metal or wood adhesive bonded assemblies when subjected to flexural stresses with standard shape specimens and under defined conditions of pretreatment, temperature, relative humidity, and testing technique. The test specimen and testing technique were designed to develop a large portion of shear forces between the laminae of the test piece when the load is applied, rather than to reduce shear stress to a minimum as is done in other ASTM test methods for flexural properties. This method is not applicable to assemblies made with nonrigid adherends. The data obtained are not suitable for design work. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purposes. 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 ====== 5.1 This test method is designed for both wood and metal bonded specimens. 5.2 The test method provides a means to compare flexural properties between assemblies. 5.3 The data are reduced to a comparable basis by means of the formulas given in 11.1 and 11.2 . It is recognized that these formulas do not apply rigidly to tests made in the manner described in this method, but serve only to reduce the data to a comparable basis.