1.1 该试验方法提供了一系列车辆碰撞条件、名称和穿透性能水平。这将允许机构选择适用于具有明确移动车辆威胁的设施的被动周边屏障和主动入口点屏障。各机构可采用并规定本试验方法中满足其特定需求的条件名称和性能水平。机构还可以根据本文所述的测试和测试方法，为主动和被动周界屏障分配认证评级。许多测试参数被标准化，以获得通用的车辆类型和质量，并进行复制，并产生统一的评级名称。 1.2 遵守这些测试程序可以确定性能指标，但不会使任何车辆周边屏障不受车辆穿透的影响。在解释测试结果以及将结果外推到测试条件以外的其他条件和用户现场条件时，应谨慎。本标准未确认测试屏障在用户现场条件下的性能。虽然计算机模拟是强大的工具，有助于开发新的和改进的屏障，或评估不同条件下的性能，但分析模型和方法必须根据物理测试数据进行验证。 在执行测试时，鼓励开发人员和用户根据需要解决特定或不寻常的用户站点条件。 1.2.1 通常，当地地形特征、土壤条件、气候或其他项目会决定特定地点的特殊需求。因此，如果用户现场条件可能会降低护栏的性能，需要车辆周边护栏的机构应要求使用复制的特定用户现场条件进行测试，以进行全面碰撞测试或数值模拟，这些条件明确表示用户现场条件，并已证明与“- 测试”土壤配置。例如，如果用户现场条件是膨胀粘土，可以获得用户现场材料，并将其提供给测试实验室进行全尺寸碰撞测试。 1.3 本试验方法下的产品/设计认证仅涉及屏障承受试验车辆冲击的能力。它并不代表对产品/设计的认可或说明其操作适用性。 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。每个系统中规定的值可能不是完全相等的； 因此，每个系统应独立使用。将两个系统的值合并可能导致不符合标准。 1.5 此测试方法旨在取代当前和未来测试中所有先前版本的测试方法。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 该试验方法提供了一个结构化程序，用于确定受到车辆撞击的车辆周边护栏的穿透等级。了解渗透等级有助于为设施周围的特定场地条件选择合适的屏障。 5.2 障碍物穿透等级并不意味着障碍物在所有现场条件、进场路线和地形中都能发挥额定性能。此外，该测试方法只需要在指定的冲击位置进行单个试样测试，因此，并非所有的冲击点都可以测试和验证穿透等级。 其他撞击地点的反应可能不同。

1.1 This test method provides a range of vehicle impact conditions, designations, and penetration performance levels. This will allow an agency to select passive perimeter barriers and active entry point barriers appropriate for use at facilities with a defined moving vehicle threat. Agencies may adopt and specify those condition designations and performance levels in this test method that satisfy their specific needs. Agencies may also assign certification ratings for active and passive perimeter barriers based on the tests and test methodologies described herein. Many test parameters are standardized to arrive at a common vehicle type and mass, and replication, and produce uniform rating designations. 1.2 Compliance with these test procedures establishes a measure of performance but does not render any vehicle perimeter barrier invulnerable to vehicle penetration. Caution should be exercised in interpreting test findings and in extrapolating results to other than test conditions and to user site conditions. This standard does not confirm the performance of the test barrier in the user site conditions. While computer simulations are powerful tools that are useful in the development of new and improved barriers or in estimating performance under differing conditions, the analytical models and methods must be validated against physical test data. When performing a test, developers and users are encouraged to address specific or unusual user site conditions as needed. 1.2.1 Often local terrain features, soil conditions, climate, or other items will dictate special needs at specific locations. Therefore, if user site conditions are likely to degrade a barrier’s performance, the agency in need of a vehicle perimeter barrier should require testing with the specific user site conditions replicated for full-scale crash testing or numerical simulations that explicitly represent the user site conditions and have demonstrated connection to the “as-tested” soil configuration. For example, if the user site conditions are expansive clays, one could obtain user site materials and provide those to the test lab for the full-scale crash test. 1.3 Product/design certification under this test method only addresses the ability of the barrier to withstand the impact of the test vehicle. It does not represent an endorsement of the product/design or address its operational suitability. 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 test method is intended to replace all previous versions of the test method for current and future testing. 1.6 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 to determine the applicability of regulatory limitations prior to use. 1.7 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 provides a structured procedure to establish a penetration rating for vehicle perimeter barriers subjected to a vehicle impact. Knowing the penetration rating helps to select an appropriate barrier for site-specific conditions around a facility. 5.2 The barrier penetration rating does not imply that a barrier will perform as rated in all site conditions, approach routes, and topography. Also, only single-specimen tests at a specified impact location are required by this test method, and therefore, not all points of impact can be tested and validated for the penetration rating. Other impact locations may respond differently.