1.1 本规程描述了将压敏胶带暴露在实验室加速风化环境中的一种环境。 1.2 本规程描述了样品制备及其应暴露的实验室加速风化环境。它没有规定暴露的时间长度，也没有规定暴露后应对材料进行什么测试。 注1: 实践 D6551/D6551M 描述了胶带的氙弧曝光。 1.3 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统必须独立使用，不得以任何方式组合值。 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. 这种做法不一定提供自然风化暴露的直接模拟。 4.2 在确定相关材料的令人满意的相关性之前，不得将使用本规程的结果表示为等同于任何自然风化试验的结果。 4.3 当操作条件在实践中规定的仪器可接受极限范围内变化时，结果可能会发生变化 G151页 和 G152页 .

1.1 This practice describes one environment for the exposure of pressure-sensitive tapes to a laboratory accelerated weathering environment. 1.2 This practice describes sample preparation and the laboratory-accelerated weathering environment to which it shall be exposed. It does not specify the length of time of the exposure nor what tests shall be performed on the material following the exposure. Note 1: Practice D6551/D6551M describes xenon-arc exposures of tapes. 1.3 The values stated in either SI or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently without combining values in any way. 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 This practice does not necessarily provide direct simulation of natural weathering exposure. 4.2 Results from use of this practice shall not be represented as being equivalent to those of any natural weathering test until a satisfactory degree of correlation has been established for the material in question. 4.3 Variations in results are possible when the operating conditions vary within the accepted limits for the instrument specified in Practices G151 and G152 .