1.1本标准描述了一种测试方法，用于评估与相同条件下实木性能相关的室温和高温下平面粘合剂的相对剪切强度。试验方法基于试样暴露在环境或恒定高温下一段规定时间后的断裂载荷，如第7节所述。本标准不排除其他方法的开发和实施，这些方法可提供满足本方法意图的同等性能。 1.2本试验方法旨在根据试验方法D 905评估可用于组装试样的粘合剂 . 其他类型粘合剂的评估，如用于绞线产品的粘合剂系统，超出了本试验方法的范围。 1.3本试验方法旨在评估高温下作为层压木制品成分的粘合剂。防火层压木制品或组件的防火性能评估不在本试验方法的范围内。 1.4虽然最好使用第6节所述的实木样本作为对照，但结构复合木材产品应符合规范D 5456的规定 应允许使用，前提是其与第6节规定的粘结试样相匹配，并且点火温度不显著低于同一品种的实木。 1.5应评估提供给层压木制品制造商的粘合剂的准确配方。除非经层压木制品制造商、合格机构和代码评估机构批准，否则对粘合剂配方的修改需要单独评估。 1.6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。 1.7 本标准并非旨在解决与其使用相关的所有安全问题，如火灾隐患。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====== 试验方法D 905中讨论了通过压缩载荷测量剪切中粘合剂强度特性的相关问题和局限性 . 虽然可以使用测试温度和热暴露时间的各种组合，7.2.4中规定的规定应基于以下理解:本试验方法的目的是在木材开始燃烧之前评估粘合剂的粘结性能，并且在考虑到特定产品及其末端时，将升高的温度选择为略低于木材的未引导点火温度- 使用应用程序。 使用本试验方法时，应考虑独特的生产条件，如木材含水量、应用的涂布率、压力和粘合剂的固化温度。

1.1 This standard describes a test method for evaluating the comparative shear strength of a planar adhesive bond at both ambient and elevated temperatures relative to the performance of solid wood under the same conditions. The test method is based on the breaking load after the specimen is exposed to either ambient or a constant elevated temperature for a specified duration as described in Section 7. This standard does not preclude the development and implementation of other methods that provide equivalent performance meeting the intent of this method. 1.2 This test method is intended for the evaluation of adhesives that can be used to assemble test specimens in accordance with Test Method D 905 . The evaluation of other types of adhesives, such as the binder systems used for strand-based products, is beyond the scope of this test method. 1.3 This test method is intended for the evaluation of adhesives as a component of laminated wood products at elevated temperatures. The evaluation of fire performance on fire-rated laminated wood products or assemblies is beyond the scope of this test method. 1.4 While it is preferable to use solid wood specimens as described in Section 6 as the control, structural composite lumber products as defined in Specification D 5456 shall be permitted for use provided they are matched with the bonded specimens in accordance with Section 6 and the ignition temperature is not significantly lower than solid wood of the same species. 1.5 The exact formulation of adhesive supplied to the manufacturer of laminated wood products shall be evaluated. Modifications to the adhesive formulation require a separate evaluation unless approved by the manufacturer of the laminated wood product, qualified agency, and code evaluation agency. 1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 This standard does not purport to address all of the safety concerns, such as the fire hazard, 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 ====== A discussion of the issues and limitations associated with the measurement of strength properties of adhesive bonds in shear by compression loading is found in Test Method D 905 . While various combinations of test temperature and heat exposure duration can be used, the provisions specified in 7.2.4 shall be based on the understanding that the objective of this test method is to evaluate adhesive bond performance just before wood begins to burn and the elevated temperature is selected to be slightly below the unpiloted ignition temperature for wood when taken into account the specific product and its end-use applications. When using this test method, consideration shall be given to the unique production conditions, such as wood moisture content, applied spread rate, press pressure, and curing temperature of the adhesive.