1.1 本规程提供了一个暴露成品压敏胶带材料的环境，以加速其老化。当用户遵守程序中详述的预防措施时，适用于卷状胶带。本规程本身不提供结论，但与加速暴露后的外观或物理性能测试结合使用。虽然这种做法是使用包装型胶带制定的，但鼓励将其用于具有类似结构的其他类型胶带。它不适用于电气级胶带（见测试方法 D1000 ). 1.2 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。 1.3 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 这种做法加速了压敏胶带的自然老化，因此与老化前的测试响应相比，对常规物理性能测试的响应变化的程度与暴露在大约两年的自然老化下的响应变化的程度相同。 5.1.1 在这种情况下，自然老化是指胶带在密闭纤维板容器中（在黑暗中）在美国温暖潮湿的南部、温暖干燥的西南部或中度中部大陆的可变气候下连续老化。 5.2 一种物理性质的变化程度应与另一种性质不同，因此也与不同的自然老化时间有关。 5.3 异常产品批次可能会导致测试响应差异，从而偏离预期的时间模式。 5.4 正常胶带产品的外观在自然老化两年后通常只会发生轻微变化。这种加速暴露通常会产生过度的外观变化，只有在异常产品的自然条件下才能看到这种变化。 5.5 目前没有将这种加速暴露与磁带在使用压力下的应用中的响应联系起来的经验。

1.1 This practice provides one environment in which to expose finished pressure-sensitive tape material for the purpose of accelerating the aging of it. It is applicable to tape in roll form when the user observes the precautions detailed within the procedure. The practice does not provide for a conclusion within itself, but is for use in conjunction with appearance or physical property tests to follow the accelerated exposure. While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged. It is not intended for use on electrical grade tapes (see Test Methods D1000 ). 1.2 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. 1.3 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 practice accelerates the natural aging of pressure-sensitive tapes so that the response to the usual physical property tests changes to the same extent as with an exposure to approximately two years of natural aging when compared with the response to tests before aging. 5.1.1 Natural aging in this context means a continuous period of aging of tape in a closed fibreboard container (in darkness) in the variable climate of either the warm moist south, the warm dry southwest or the moderate midcontinent, USA. 5.2 The extent of change for one physical property should be expected to be different than for another property and so would also relate to different natural aging time. 5.3 An abnormal product lot may cause differences in testing response that throw off the expected time patterns. 5.4 Appearance of normal tape product will usually change only slightly on two years natural aging. This accelerated exposure usually produces an exaggerated change in appearance which would be seen under natural conditions only in abnormal product. 5.5 There is no present experience to relate this accelerated exposure to responses of tape in applications where the tape is under a use stress.