【国外标准】 Standard Test Method for Surrogate Testing of Vehicle Impact Protective Devices at Low Speeds

5.1 This test method provides a procedure to establish a penetration rating for vehicle protective devices subjected to low-speed vehicle impact. Knowing the penetration rating provides the end user with the ability to select an appropriate protective device for site-specific conditions.5.2 The protective device penetration rating does not imply that a device will perform as rated in all site conditions, approach routes, and topography. Also, this test method requires that the specimen only be tested at a specific impact location and, therefore, not all locations of impact can be tested and validated for a penetration rating. Other impact locations may provide different penetration ratings.1.1 This test method provides a range of impact speeds to be used with a 22 250-N [5000 lb] surrogate test vehicle. This test method establishes a range for penetration performance ratings. End users will be responsible for identifying the appropriate vehicle impact speed and penetration performance ratings in this test method that satisfies their specific needs.1.1.1 In addition, end users may assign certification ratings for vehicle protective devices based on the test methodologies described herein. Test parameters are standardized to arrive at a common vehicle weight, enhance test realism and replication, and produce uniform rating designations.1.1.2 The selected reference points for the vehicle protective devices are intended to protect assets on the protected side. Therefore, points of reference may vary from other standards.1.2 Units—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 nonconformance with the standard.1.3 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.1.4 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.