1.1 本规程提供了估算胶合板剪切、块剪切、指接试样或任何其他涉及木材的结合线中发生的木材破坏百分比的程序。 1.2 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 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====== 4.1 木材破坏评估是确定粘接木材接头质量的主要手段之一。 4.2 当在浸水、浸水和干燥或煮沸和干燥后进行评估时，估计的木材失效百分比是鉴定用于胶合板、层压结构木材、，胶合木制品，以及各种胶合木制品（包括但不限于胶合板和层压木材）制造过程的日常质量控制。使用木材破损百分比的标准包括在第节中 2. . 4.3 在由北美软木品种制造的胶合板中，试验方法中的木材失败百分比 D906 在真空压力浸泡干燥或煮沸干燥处理后进行潮湿测试的样本与在户外暴露时无保护分层的面板百分比相关。 7. 4.4 其他产品的类似相关性尚未公布。

1.1 This practice provides procedures for estimating the percentage of wood failure that occurs in plywood-shear, block-shear, finger joint test specimens, or any other bondline involving wood. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only. 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 An estimate of wood failure is one of the principal means for determining the quality of an adhesively bonded wood joint. 4.2 When evaluated after a water soaking, water soaking and drying, or boiling and drying, the percentage of estimated wood failure is an important criterion for qualifying adhesives for use in plywood, laminated structural timber, adhesively bonded wood products and for daily quality control of the processes for manufacturing various adhesively bonded wood products including but not limited to plywood and laminated timbers. Standards that use the percentage of wood failure are included in Section 2 . 4.3 In plywood manufactured from North American softwood species, the percentage of wood failure of Test Method D906 specimens, tested wet after either a vacuum-pressure soak-dry or boil-dry treatment, correlates with the percentage of panels that delaminate in outdoor exposure without protection. 7 4.4 Similar correlations for other products have not been published.