1.1 本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确定移动车辆威胁的设施的被动周边障碍物和主动入口点障碍物。机构可采用并在本试验方法中规定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，为主动和被动周边护栏指定认证等级。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，并产生统一的额定值。 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障碍物不受车辆渗透的影响。在解释测试结果和将结果外推到除测试条件外的其他条件和用户现场条件时应谨慎。本标准不确认测试屏障在用户现场条件下的性能。虽然计算机模拟是有助于开发新的和改进的屏障或在不同条件下估计性能的强大工具，但必须根据物理测试数据验证分析模型和方法。 在执行测试时，鼓励开发人员和用户根据需要解决特定或异常的用户站点条件。 1.2.1 通常，当地的地形特征、土壤条件、气候或其他项目将决定特定位置的特殊需求。因此，如果用户现场条件可能会降低屏障的性能，需要车辆周边屏障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，明确表示用户现场条件，并已证明与“测试”土壤配置的连接。 例如，如果用户现场条件为膨胀粘土，则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。它不代表对产品/设计的认可，也不表示其操作适用性。 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 本试验方法旨在取代所有先前版本的试验方法，用于当前和未来的试验。 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）。本标准的用户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（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 本试验方法提供了一个结构化程序，以确定受到车辆冲击的车辆周边障碍物的穿透等级。了解渗透等级有助于为设施周围的现场特定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达到额定值。此外，本试验方法仅要求在指定冲击位置进行单试样试验，因此，并非所有冲击点都可以测试和验证穿透等级。 其他碰撞位置的响应可能不同。

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.