1.1 这些试验方法涵盖了实验室程序，用于评估与预成型胶带密封剂直接接触的离型纸的释放特性。 1.2 以公制（SI）单位表示的值应视为标准。括号中给出的值仅供参考。 1.3 具有管辖权的小组委员会不知道有任何类似的ISO标准。 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====== 5.1 预成型胶带密封剂是粘性、可变形的固体，在各种密封应用中，在两种基材之间的压缩下使用。这些胶带通常以卷的形式提供，带有离型纸夹层。当卷取下并从预成型胶带密封剂上取下离型纸时，预成型胶带密封剂不得转移到离型纸上，也不得在纸上留下任何残留物。 这些方法将定性地指示在受控暴露期后是否可以将离型纸从预成型的胶带密封剂上清洁地去除。 5.2 列出了替代程序，因为一些预成型胶带密封剂通常在可能遇到高温的现场条件下使用，而其他预成型胶带密封剂通常在“装配线”操作中更受控的环境下使用。

1.1 These test methods cover laboratory procedures for evaluating the release characteristics of a release paper intended to be supplied in direct contact with a preformed tape sealant. 1.2 The values stated in metric (SI) units are to be regarded as the standard. The values given in parentheses are provided for information purposes only. 1.3 The subcommittee with jurisdiction is not aware of any similar ISO standard. 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 ====== 5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in various sealing applications. These tapes are usually supplied in roll form with a release paper interlayer. When the roll is unwound and the release paper is removed from the preformed tape sealant, there should be no transfer of the preformed tape sealant to the release paper, nor any residue left on the paper. These methods will give a qualitative indication of whether or not the release paper can be removed cleanly from a preformed tape sealant after a controlled exposure period. 5.2 Alternative procedures are listed because some preformed tape sealants are normally used under field conditions where elevated temperatures can be encountered, while other preformed tape sealants are normally used under more controlled environments in “assembly line” operations.