ASTM F 457 - 04 (Reapproved 2017) Standard Test Method for Speed and Distance Calibration of Fifth Wheel Equipped With Either Analog or Digital Instrumentation

Current edition approved May 1, 2017. Published July 2017. Originally approved in 1976. Last previous edition approved in 2010 as F457 – 04 (2010). — 4 p.
This test method covers the determination of vehicle speed and cumulative distance traveled using a device termed a fifth wheel and using appropriate associated instrumentation.
This test method also describes the calibration technique applicable to digital or analog speed and distance measurement systems employing a fifth wheel.