1.1 本试验方法旨在确定安全气囊在规定时间间隔内保持高压空气压力的能力。 1.2 经买方和供应商同意，可使用本试验方法中规定以外的程序和仪器，前提是与报告中确认的标准存在特定偏差。 1.3 该试验方法的结果不应用于预测缓冲垫在部署期间的实际内部压力衰减。 1.4 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。 将两个系统的值合并可能会导致不符合标准。 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 本试验方法可用于产品开发和设计、生产验证、制造过程控制、批量验收或其组合。 5.2 该方法中的充气率不试图模拟实际缓冲部署的充气率，也不打算在此类事件中使缓冲承受动态载荷、应力和温度。还应认识到，用于本试验的压缩空气可能不会以与通常用于座垫充气机的气体或气体混合物相同的速率通过座垫泄漏。相反，该方法旨在给出缓冲垫压力保持能力的相对指示。 5.3 坐垫的内部体积和内部设计差别很大。 当比较来自相同设计和体积的座垫的数据时，该测试方法最有用。本试验方法未提供任何有关袋子泄漏气体体积的数据。在某些较高的初始内压水平下，该试验方法将不可逆地损坏垫层，并改变其泄漏特性，以备将来测试或商业使用。袋子的损坏取决于特定袋子的设计或形状以及应用的涂层类型。供应商和/或买方有责任确定测试垫层的参数是否具有破坏性，并使垫层不适合未来使用 5.4 在第节中表示的方差范围内 12 ，该测试方法对设计和生产验证有用，并且可能适用于将其纳入缓冲规范或商业装运的批量验收测试。

1.1 This test method is intended to determine the ability of an inflatable restraint cushion to retain air pressure at elevated pressures for a specified time interval. 1.2 Procedures and apparatus other than those stated in this test method may be used by agreement of purchaser and supplier, provided the specific deviations from the standard acknowledged in the report. 1.3 The results of this test method should not be used to predict the actual internal pressure decay of a cushion during a deployment. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 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 may be used for product development and design, production validation, manufacturing process control, lot acceptance, or for a combination thereof. 5.2 The rate of inflation in this method does not attempt to mimic that of an actual cushion deployment, nor is it intended to subject the cushion to the dynamic loads, stress, and temperatures during such an event. It is also recognized that the compressed air used for this tests may not leak through the cushion at the same rate as the gas or mixture of gasses typically used in cushion inflators. Rather this method is intended to give a relative indication of the pressure holding ability of the cushion. 5.3 The internal volume and internal design of cushions varies greatly. This test method is most useful when comparing data from cushions of the same design and volume. This test method does not provide any data concerning the volume of gas leaking from the bag. At certain higher levels of the initial internal pressure, this test method will irreversibly damage the cushion and change its leakage properties for future testing or for commercial use. The damage to the bag is dependent on the design or shape of a specific bag and the type of coating applied. It is the responsibility of the supplier and/or purchaser to determine if the parameters under which a cushion is tested will be destructive and render the cushion unfit for future use 5.4 Within the limits of variance expressed in Section 12 , this test method is useful for design and production validation and may be suitable for incorporation in a cushion specification or for lot acceptance testing of commercial shipments.