1.1 本试验方法涵盖了测试预装配永久密封中空玻璃装置或故意打开毛细管的中空玻璃装置性能的程序。 1.2 本试验方法仅适用于由玻璃制成的中空玻璃单元。 1.3 本试验方法适用于双层中空玻璃和三层中空玻璃。对于三层中空玻璃单元，其中两个外层玻璃是玻璃，而内层玻璃是玻璃或悬浮膜。 1.4 本试验方法中使用的单元结构包含作为试验基本组成部分的尺寸。不同类型的玻璃、不同的玻璃厚度和不同的空腔尺寸可能会影响测试结果。 1.5 由于试验限制，本试验方法不适用于含有拱肩玻璃涂层的中空玻璃单元。 1.6 以国际单位制表示的数值应视为标准值。 国际单位制后括号中给出的值仅供参考，不被视为标准值。 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、健康和环境实践，并确定监管限制的适用性。 1.8 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 本试验方法旨在提供一种测试密封系统性能和中空玻璃单元结构的方法。 4.1.1 根据本方法测试的中空玻璃单元可能适用于结构上釉应用。 然而，对于这些应用，必须审查密封剂在长期紫外线照射下的寿命和密封剂的结构特性等因素。 4.1.2 根据本方法测试的中空玻璃单元不适用于连续暴露在高相对湿度条件下或长期浸入水中。

1.1 This test method covers procedures for testing the performance of preassembled permanently sealed insulating glass units or insulating glass units with capillary tubes intentionally left open. 1.2 This test method is applicable only to insulating glass units that are constructed with glass. 1.3 This test method is applicable to both double-glazed and triple-glazed insulating glass units. For triple-glazed insulating glass units where both of the outer lites are glass and the inner lite is either glass or a suspended film. 1.4 The unit construction used in this test method contains dimensions that are an essential component of the test. Different types of glass, different glass thicknesses, and different cavity sizes may affect the test results. 1.5 This test method is not applicable to insulating glass units containing a spandrel glass coating due to testing limitations. 1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.7 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. 1.8 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 This test method is intended to provide a means for testing the performance of the sealing system and construction of insulating glass units. 4.1.1 Insulating glass units tested in accordance with this method may be suitable for structurally glazed applications. However, factors such as sealant longevity when exposed to long term ultraviolet light and the structural properties of the sealant must be reviewed for these applications. 4.1.2 Insulating glass units tested in accordance with this method are not intended for continuous exposure to high relative humidity conditions or long-term immersion in water.