1.1 本试验方法涵盖了使用特定可包装性指数确定安全气囊用织物折叠和包装能力的程序。 1.2 本试验方法中的程序描述了必须严格遵循的操作员技术，以获得可重复和准确的结果。由于这些技术难以以书面形式传达，因此需要对操作员进行补充培训。ASTM提供了培训视频（见附件ADJD6478和ADJD6478A）。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.4 除本实施规程中规定的程序和仪器外，可根据买方和供应商之间的约定使用，与本实施规程的具体偏差在报告中予以确认。 1.5 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。 1.6 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 本试验方法有助于确定未涂层和涂层气囊织物的特定可包装性。 由于其固有的空间约束，织物可包装性是安全气囊模块设计中的一个重要因素。 5.2 如果与另一个试样相比，折叠试样在规定载荷下的总体积较小，则其具有更好的特定可包装性。 5.3 使用该测试方法测试一个样品（来自同一批次织物的四个样品）所需的时间约为1.5小时。由于本试验方法执行单个试验所需的时间长，本试验方法最适合用于设计和开发分析，或包含在安全气囊织物年度认证所需的试验列表中。

1.1 This test method covers procedures for determining the ability to fold and pack fabrics used for inflatable restraints using an index of specific packability. 1.2 Procedures in this test method describe operator techniques that must be followed closely to obtain repeatable and accurate results. Since these techniques are difficult to convey in writing, supplemental training for operators is required. A training video is available from ASTM (see Adjuncts ADJD6478 and ADJD6478A). 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 Procedures and apparatus other than those stated in this practice may be used as agreed upon between the purchaser and the supplier with specific deviations from this practice acknowledged in the report. 1.5 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. 1.6 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 test method is useful for determining the specific packability of uncoated and coated airbag fabrics. Fabric packability is an important factor in the design of airbag modules due to their inherent spacial constraints. 5.2 A folded specimen exhibits better specific packability if it occupies a lower total volume at the specified loads compared to another specimen. 5.3 The time required to test one sample (four specimens from the same lot of fabric) is approximately 1.5 h using this test method. Due to the length of time required by this test method to perform a single test, this test method is most suitable for use in design and development analysis or for inclusion in a list of required tests conducted for annual certification of an airbag fabric.