1.1 本规范规定了非结构粘合木材产品中用于指接的粘合剂的性能水平。此类产品包括但不限于内部和外部模塑件、门窗组件或零件以及粘合木板。满足各种性能等级要求的粘合剂被视为能够在该等级所述的条件下提供足够的粘合。本规范用于评估粘合剂以及指关节中的粘合剂。参见第节 5. ，重要性和用途，以了解使用本规范评估工业制造的手指关节时的局限性。 注1: 本规范取代1990版规范的指关节部分 D3110 . 1.2 以下索引作为本规范中试验方法的指南: 部分 仪器 6. 设备、材料以及组件和试样的制备 7. 工厂制造组件、实验室制造组件和试样的调节 8. 弯曲试验 9 张力测试 10 暴露条件和处理 11 1. 干用试验:干燥、3周期浸泡、高温和温湿度 11.1 2. 湿用试验:干燥、沸腾、高温和真空压力 11.2 注2: 给出了制备这两种样品和暴露试验的各个阶段所需的调节。 注3: 针对弯曲试样，给出了试样尺寸、暴露条件、测试、计算和报告的具体指南 9 和 11 ，对于截面中的拉伸试样 10 和 11 . 1.3 对于以下定义: 干式使用 和 湿式使用 看见 3.2.1.1 和 3.2.1.2 . 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的国际单位仅供参考。 1.5 以下预防性警告仅适用于仪器和试验方法部分、章节 6 – 11 本规范: 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。 1.6 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 粘合剂分为干用和湿用。每种分类都考虑了在高达220°F（104°C）的高温下的短期运输暴露条件。 5.2 规范的初步开发 D3110 基于在受控实验室条件下制造的指关节组件。 在制定本修订规范的过程中，使用实验室制作的样本获得的结果（见 12.1.2 )与工业制造的样品进行了比较（见 12.1.1 ). 这些指关节是使用先前认证的粘合剂与制造商或设备供应商合作制备的，他们拥有必要的指关节切割器和装配设备。这些指状接头的几何形状和长度可能因制造商而异，这种变化可能会影响粘结指状接头组件的性能。 5. （参见 12.1 , 12.4 和 12.5 .) 图3 描述了手指关节配置示例。 5.2.1 当工业制造的手指关节的设计发生变化时，应将新设计与已成功使用的控制设计进行比较。 5.3 工业制造的指关节应根据本规范的要求进行评估 4.1 . 当本规范用于评估由现场制造组件制成的试样时，结果可能无法与实验室制造组件制成的试样上的结果进行比较。 5.4 提供了测试要求，以确定粘合剂是否适合干用或湿用。 5.5 干燥试验和暴露条件及处理旨在评估典型使用条件下非结构手指关节中使用的粘合剂。 5.5.1 220°F（104°C）试验是一种更严格的试验，旨在评估暴露于短期高温条件下的产品。该测试旨在模拟运输、进一步加工或使用条件中可能遇到的条件。 注4: 这些典型的工作条件可能包括压力和承受压力的时间，以及温度升高。 5.6 程序描述足够详细，允许在不同的测试实验室中重复。 5.6. 1. 在报告表格上记录这些程序中的任何偏差， 附录X1 ，因为它可能会对获得的结果产生影响。测试数据仅对使用的长度和设计有效。（参见 12.4 .) 5.7 为了避免因中断粘合过程而导致的潜在问题，在搬运和提前装运之前，应由指接制造商确定粘合剂性能水平。在开始整个测试过程之前，测试实验室应首先抽取代表性样品并检查干强度，以确保产品基本符合粘合剂制造商认证的性能水平。

1.1 This specification establishes performance levels for adhesives to be used in finger joints in nonstructural bonded-lumber products. Such products include, but are not limited to, interior and exterior mouldings, window and door components or parts, and bonded-lumber panels. Adhesives that meet the requirements of the various performance classes are considered capable of providing an adequate bond for use under the conditions described for the class. This specification is to be used to evaluate adhesives as well as the adhesive bonds in the finger joints. See Section 5 , Significance and Use, for limitations when using this specification to evaluate industrially manufactured finger joints. Note 1: This specification supersedes the finger-joint portion of the 1990 edition of Specification D3110 . 1.2 The following index is provided as a guide to the test methods in this specification: Section Apparatus 6 Equipment, Material, and Preparation of Assemblies and Specimens 7 Conditioning for Factory-Manufactured Assemblies, Laboratory-Made Assemblies, and Test Specimens 8 Testing in Flexure 9 Testing in Tension 10 Exposure Conditions and Treatments 11 1. Dry Use Tests: Dry, 3-cycle Soak, Elevated Temperature, and Temperature-Humidity 11.1 2. Wet Use Tests: Dry, Boil, Elevated Temperature, and Vacuum-Pressure 11.2 Note 2: The conditioning needed for various stages in the preparation of both types of specimens and for the exposure tests are given. Note 3: Specific guidelines for specimen size, exposure conditions, testing, calculation, and reporting are given for flexure specimens in Sections 9 and 11 , and for tension specimens in Sections 10 and 11 . 1.3 For the definitions of dry use and wet use , see 3.2.1.1 and 3.2.1.2 . 1.4 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information only. 1.5 The following precautionary caveat pertains only to the apparatus and test methods portions, Sections 6 – 11 of this specification: 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. 1.6 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 Adhesives are classified as dry use or wet use. Each classification includes consideration of short-term in-transit exposure conditions at elevated temperatures up to 220°F (104°C). 5.2 The initial development of Specification D3110 was based on finger-joint assemblies made under controlled laboratory conditions. In the development of this revised specification the results obtained with laboratory-made specimens (see 12.1.2 ) were compared to those obtained with industrially manufactured specimens (see 12.1.1 ). These finger joints were prepared using previously certified adhesives in cooperation with a manufacturer or equipment supplier who had the necessary finger-joint cutter and assembly equipment. These finger joints may vary in geometry and length from manufacturer to manufacturer, and this variation could affect the performance of the bonded-finger-joint assembly. 5 (See 12.1 , 12.4 , and 12.5 .) Fig. 3 depicts a sample finger-joint configuration. 5.2.1 When changes are made in the design of the industrially manufactured finger joint, the new design should be compared to a control design that has been used successfully. 5.3 An industrially manufactured finger joint should be evaluated using the requirements for compliance with this specification, in accordance with 4.1 . When this specification is used to evaluate specimens made from field-manufactured assemblies, the results may not compare favorably with those run on specimens made from laboratory-made assemblies. 5.4 Test requirements are provided to determine if the adhesive is suitable for dry use or wet use. 5.5 The dry test and exposure conditions and treatments are to evaluate adhesives used in nonstructural finger joints for typical service conditions. 5.5.1 The 220°F (104°C) test, a more severe test, is designed to evaluate the product after exposure to short-term elevated-temperature conditions. This test is intended to simulate conditions that might be experienced in transit, further processing, or in-service conditions. Note 4: These typical service conditions could include stress and time under stress, as well as elevated temperature. 5.6 Procedures are described in sufficient detail to permit duplication in different testing laboratories. 5.6.1 Record any deviations in these procedures on the report forms, Appendix X1 , as it may have an impact on the results obtained. Test data are only valid for the length and design used. (See 12.4 .) 5.7 To avoid potential problems that would be caused by interrupting the bonding process, the adhesive-performance level should be determined by the finger-joint manufacturer prior to handling and early shipment. Before beginning the full testing process, the testing laboratory should pull a representative sample and check the dry strength first, in order to ensure that the product basically conforms with the performance level certified by the adhesive manufacturer.