1.1本试验方法提供了一种现场程序，用于确定安装的外部门窗的漏气率。 1.2本试验方法适用于外门窗，旨在仅测量与组件相关的泄漏，而不是通过组件和相邻结构之间的开口进行的泄漏。如果可以识别、控制或消除空气运动的潜在路径以及渗透和渗出源，则可以将试验方法用于后一目的。 1.3本试验方法试图创造和给定一组自然环境条件。 由于其设计和使用，试验方法或试验装置极有可能导致在自然环境暴露下不会发生的漏气。 1.4本试验方法旨在对安装的外部窗户或门进行现场试验。对开窗产品的实验室测试感兴趣的人员应参考测试方法E283。 1.5使用本程序的人员应熟悉流体力学和仪器实践领域，并对开窗产品和组件有总体了解。 1.6在本试验方法中，国际单位制列在第一位 E-6 公制政策，并应视为主要单位。括号中提供了非国际单位制。 1.7 本标准并非旨在解决与其使用相关的所有安全问题（如有）。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。 有关具体的预防说明，请参阅第7节。

1.1 This test method provides a field procedure for determining the air leakage rates of installed exterior windows and doors. 1.2 This test method is applicable to exterior windows and doors and is intended to measure only such leakage associated with the assembly and not the leakage through openings between the assemblies and adjacent construction. The test method can be adapted for the latter purpose, provided the potential paths of air movement and the sources of infiltration and exfiltration can be identified, controlled, or eliminated. 1.3 This test method attempts to create and given set of natural environmental conditions. There is a strong possibility that the test method or the test apparatus may, by virtue of their design and use, induce air leakage that does not occur under natural environmental exposure. 1.4 This test method is intended for the field testing of installed exterior windows or doors. Persons interested in laboratory testing of fenestration products should reference Test Method E283. 1.5 Persons using this procedure should be knowledgeable in the area of fluid mechanics and instrumentation practices, and shall have a general understanding of fenestration products and components. 1.6 Throughout this test method, SI units are listed first in accordance with E-6 metric policy, and shall be considered the primary units. Non-SI units are provided in parenthesis. 1.7 This standard does not purport to address all of the safety problems, if any, 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. For specific precautionary statements, see Section 7.