1.1 本试验方法包括建筑物外壳中使用的空气屏障组件的空气泄漏率的测定。该程序在暴露于特定调节循环之前和之后测量代表性空气屏障组件的空气泄漏，然后根据结果指定额定值。虽然这是一个实验室程序，但该方法也可以应用于现场实体模型。 1.2 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.3 本标准并不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 该方法旨在模拟各种空气屏障材料/附件组合成组件时的性能。然后，根据测量结果，本程序为空气屏障组件分配空气泄漏额定值。 5.2 该方法并不旨在建立在选择空气屏障组件时需要考虑的所有标准。该结果旨在用于比较目的，当作为建筑物中空气屏障系统的一部分安装时，可能不代表空气屏障组件的现场安装性能。然而，这些测试的结果可能有助于确定特定空气屏障系统组件的适当使用。 5.3 该方法并不旨在为所有结构类型的空气屏障系统建立所有必要的标准。试验方法 E2178 提供了一种用于测试某些空气阻隔材料的透气性测试方法。 规格 E1677 提供了用于低层框架建筑墙壁的空气屏障系统的规范。

1.1 This test method covers the determination of the air leakage rate of air barrier assemblies that are used in building enclosures. This procedure measures the air leakage of a representative air barrier assembly before and after exposure to specific conditioning cycles and then assigns a rating dependent upon the results. Although this is a laboratory procedure, the method may also be applied to site mockups. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 5.1 This method is intended to simulate the performance of various air barrier materials/accessories when combined into an assembly. Based upon the results of the measurements, this procedure then assigns an air leakage rating for the air barrier assembly. 5.2 This method does not purport to establish all criteria necessary for consideration in the selection of an air barrier assembly. The results are intended to be used for comparison purposes and may not represent the field installed performance of the air barrier assembly when installed as part of an air barrier system in a building. However, the results of these tests may be useful in determining the appropriate use of a specified air barrier system assembly. 5.3 This method does not purport to establish all criteria necessary for air barrier systems of all construction types. Test Method E2178 provides an air permeance test method for testing of some air barrier materials. Specification E1677 provides a specification for air barrier systems for low-rise framed building walls.