ASTM F3455 F3455M-22 确定超长可变宽度车辆护栏碰撞试验最小和最大宽度配置的标准实施规程.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:F3455/F3455M-22 INTERNATIONAL Standard Practice for Establishing the Minimum-and Maximum-Width Configurations for Crash Testing of Exceptionally Long Variable-Width Vehicle Barriers This standard is issued under the fixed designation F3455/F3455M: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. 1.Scope 1.8 The values stated in either SI units or inch-pound units 1.1 This practice provides a procedure for applying Test are to be regarded separately as standard.The values stated in Method F2656/F2656M test criteria to an exceptionally long each system are not necessarily exact equivalents;therefore to (that is 300 ft [91 m]or greater)variable-width vehicle barrier ensure conformance with the standard each system shall be as defined by Test Method F2656/F2656M. used independently of the other and values from the two systems shall not be bined. 1.2 This practice provides a procedure to establish a 1.9 This st...