1.1 这种无损检测方法检测托盘中的针孔泄漏，小到50μm（0.002英寸）直径或同等尺寸的裂纹，取决于托盘中的痕量气体浓度、托盘设计和制造公差。 1.2 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。 1.3 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。 1.4 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 有害的生物或颗粒污染物可能通过托盘中的针孔或裂纹等缺陷进入包装。 5.2 初始仪器设置和校准后，单个测试的操作和测试结果不需要操作员解释。 5.3 超过允许阈值设置的泄漏测试结果通过声音或视觉信号响应或两者或其他方式指示。 5.4 这种无损检测方法可以在实验室或生产环境中进行，也可以在100 % 或统计抽样基础。这种测试方法在单仪器使用和当前实施中可能不够快，无法在生产包装线上工作，但非常适合统计测试和包装开发设计工作。

1.1 This non-destructive test method detects pinhole leaks in trays, as small as 50 μm (0.002 in.) in diameter, or equivalently sized cracks, subject to trace gas concentration in the tray, tray design and manufacturing tolerances. 1.2 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. 1.3 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. 1.4 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 Harmful biological or particulate contaminants may enter the package through imperfections such as pinholes or cracks in trays. 5.2 After initial instrument set-up and calibration, the operations of individual tests and test results do not need operator interpretation. 5.3 Leak test results that exceed the permissible threshold setting are indicated by audible or visual signal responses, or both, or by other means. 5.4 This non-destructive test method may be performed in either laboratory or production environments and may be undertaken on either a 100 % or a statistical sampling basis. This test method, in single instrument use and current implementation, may not be fast enough to work on a production packaging line, but is well suited for statistical testing as well as package developmental design work.