1.1 本试验方法的目的是定量测量受控条件下的层压板稳定性，特别是与热暴露层压板中气泡的形成有关的稳定性。 1.2 本试验方法可在暴露于风化的层压板上或作为制造样品进行，以确定溶解在夹层中的过量空气量。 1.3 本试验方法确定夹层玻璃在高温环境下的稳定性。 1.4 本试验方法概述了用夹层粘合两层或多层玻璃的夹层玻璃上使用的程序。 1.5 本试验方法涵盖了试样的视觉评级。 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====== 5.1 通常认为，当暴露于热或紫外线辐射或两者时，夹层内的过量水分和空气将导致层压板中形成气泡。这些可能是由夹层中的初始水分和空气引起的，并由热暴露产生。本试验方法的目的是定量测量受控条件下的层压板稳定性，特别是与层压板主体中气泡的形成有关的稳定性。 5.2 在受控的温度和时间下将夹层玻璃加热，以提供多余的水分和空气，这些水分和空气在加工过程中被迫进入夹层，形成气泡。只有当玻璃之间有多余的水分和空气时，才会发生这种情况。因此，使这些热测试有效地确定夹层玻璃产品的适当脱气。 5.3 该测试方法提供了一种目测确定是否已经或正在发生变色的方法，并作为层压质量某些方面的合格/不合格测试。 5.4 本试验方法可在自然或加速暴露后进行，以确定聚合物是否发生变化，例如高温稳定性，这有助于了解安装玻璃的视觉稳定性。 5.5 本试验方法不提供夹层玻璃抗冲击能力、破裂时玻璃碎片保持力或夹层玻璃边缘稳定性的指示。

1.1 The purpose of this test method is to measure quantitatively the laminate stability under controlled conditions, specifically in relation to the formation of bubbles in a laminate with heat exposure. 1.2 This test method can be performed on laminates which have been exposed to weathering or as manufactured samples to determine the amount of excess air dissolved in the interlayer. 1.3 This test method determines the stability of laminated glass when subjected to high heat environments. 1.4 This test method outlines a procedure to be used on laminated glass with two or more layers of glass bonded by an interlayer. 1.5 This test method covers visual rating of tested specimens. 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 ====== 5.1 It is generally recognized that excess moisture and air within an interlayer will cause bubble formation in a laminate when exposed to heat or UV radiation, or both. These may be caused by initial moisture and air in the interlayer and be generated by thermal exposure. The purpose of this test method is to measure quantitatively the laminate stability under controlled conditions, specifically in relation to the formation of bubbles in the body of the laminate. 5.2 Subjecting the laminated glazing to extended heat at a controlled temperature and time provides the excess moisture and air which are forced into the interlayer during processing to surface as bubbles. This occurs only if there are excess moisture and air trapped in between the glass. Therefore, making these thermal tests efficient to determine proper de-airing of laminated glass products. 5.3 This test method provides a means to visually determine if discoloration has or is occurring and serves as a pass/fail test for some aspects of lamination quality. 5.4 This test method can be performed after natural or accelerated exposure to determine if there are changes to the polymer such as the stability with high temperature which is useful for understanding the visual stability of installed glazing. 5.5 This test method does not provide an indication of laminated glass capability for impact resistance, glass shard retention on breakage or edge stability of laminated glass.