ASTM F2656 F2656M-20 车辆安全障碍物碰撞试验的标准试验方法.pdf

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 Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:F2656/F2656M-20 NTERNATIONAL Standard Test Method for Crash Testing of Vehicle Security Barriers1 This standard is issued under the fixed designation F2656/F2656M:the number immediately following the designation indicates the year of original adoption or.in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (E)indicates an editorial change since the last revision or reapproval. INTRODUCTION Original perimeter barrier test methods were first published in 1985 by the Bureau of Diplomatic Security to assess the crash performance of perimeter barriers and gates.Since that time the frequency and scale of attacks using vehicles with or without an explosive payload have increased both internationally and domestically.Therefore there is a need to address a broad spectrum of possible incident conditions such as credible threat vehicle types for the locale attack velocities of the different vehicles and different acceptable penetration limitations.Also there are different evaluation criteria for different agencies that fulfill their unique access control operations aesthetics and oth...