1.1 本试验方法包括测定含有顶空气体的软包装中的总泄漏量。测试灵敏度限制为1 × 10 −5. atm cm 3. /s（1 × 10 −6. Pa m公司 3. /s） 或更不敏感，如最近的实验室间试验所示（在第节中报告） 12 ). 1.2 此程序可能无法检测到小泄漏。粘弹性对产品或截留空气的影响变得显著，并阻止通过小开口。抽真空后袋内的正压力可能会迫使产品堵塞小泄漏。可以检测到的泄漏大小取决于所含产品、包装材料的性质和选择的测试参数。 1.3 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 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。

1.1 This test method covers the determination of gross leaks in flexible packaging containing a headspace gas. Test sensitivity is limited to 1 × 10 −5 atm cm 3 /s (1 × 10 −6 Pa m 3 /s) or even less sensitive as indicated in a recent interlaboratory test (reported in Section 12 ). 1.2 Small leaks may not be detected by this procedure. Viscoelastic effects on the products, or entrapped air, become significant and prevent passage through small openings. Positive pressure inside the pouch after the vacuum is drawn may force the product to plug small leaks. The size of the leak that can be detected is dependent upon the products contained, the nature of the packaging material, and the test parameters selected. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.