1.1 本试验方法描述了测量抹平地毯粘合剂开口装配时间的程序。 1.2 本试验方法评估了粘合剂有效润湿预期地毯衬垫的能力。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.4 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。 1.5 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 粘合地毯时，有足够的开放装配时间的能力至关重要。如果粘合剂的开放装配时间太短，则在粘合剂干燥到无法使用之前，安装人员没有足够的时间放置地毯。打开组装时间过长的产品将无法提供足够的干燥时间，使地毯在不移动地毯的情况下粘合到预期基材上。 4.2 该试验方法提供了一种测量粘合剂开口装配时间的方法。使用这种测试方法可以帮助制造商开发和用户选择合适的粘合剂来安装地毯。 4.3 试验方法 C679型 被用作该测试方法的模型。

1.1 This test method describes a procedure to measure open assembly time for a troweled carpet adhesive. 1.2 This test method provides an evaluation of the ability of an adhesive to effectively wet out the intended carpet backing. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 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. 1.5 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 ====== 4.1 The ability to have a sufficient open assembly time is critical when bonding a carpet. An adhesive with too short an open assembly time will not allow the installer enough time to position the carpet before the adhesive is dried beyond use. A product with too long an open assembly time will not provide enough dry time for the carpet to bond to the intended substrate without movement of the carpet. 4.2 The test method provides a means of measuring the open assembly time for an adhesive. Use of such a test method can aid both the manufacturer to develop and the user to select the appropriate adhesive for the installation of carpet. 4.3 Test Method C679 was used as a model for this test method.