1.1 本试验方法评估了根据试验方法中的指南确定尺寸并固化的密封剂试样上诱导撕裂的影响 C719 然后经受恒定的应变。它可以有效区分用于磨损、穿孔、撕裂或其组合的动态接头的密封剂。 1.2 由于该测试方法用于评估撕裂传播，因此基材的粘合剂失效无法提供有关撕裂传播的可用数据。这将被视为一次失败的测试，该数据将被丢弃，或者至少与未经历粘合失效的样本的其他数据分开。 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）。 本标准的使用者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 本标准在概念上与欧洲技术认证指南（ETAG）002第1部分第5.1.4.6.4节抗撕裂性相似。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 该试验方法旨在确定受到机械诱导切割的接头在正常接头运动过程中是否能抵抗撕裂传播。 注1: 具有高抗撕裂性传播的密封剂可以比具有低抗撕裂性的密封剂表现得更好。

1.1 This test method evaluates the impact of an induced tear on a sealant specimen that is dimensioned, cured according to the guidelines in Test Method C719 and then subjected to a constant strain. It is effective in differentiating between sealants that are used in dynamic joints subject to abrasion, punctures, tears, or combination thereof. 1.2 Since this test method is for the evaluation of tear propagation, an adhesive failure to the substrates provides no usable data regarding tear propagation. This would be considered a failed test and that data would be discarded, or at least separated from the other data from specimens that did not experience an adhesive failure. 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 standard is similar in concept to European Technical Approval Guidelines (ETAG) 002, Part 1, Section 5.1.4.6.4—Resistance To Tearing. 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 This test method is intended to determine if a joint that is subjected to a mechanically induced cut will resist tear propagation during normal joint movement. Note 1: A sealant with a high resistance to tear propagation may perform better than a sealant with a low resistance to tear propagation.