1 This International Standard specifies methods for measuring and reporting the whole body vibration to which the operator of an agricultural wheeled tractor or other field machine is exposed when operating on a standard test track. 2 The operating conditions of the machine and the ordinates of the artificial test tracks are also included. 3. This International Standard applies when measurements are made on the artificial test tracks defined herein. 4. Measurements made under field conditions are covered in annex A. 5. This International Standard does not include assessment of vibration reaching the operator other than through his/her seat or foot platform (e.g., vibration that is sensed by the feet through the controls or by the hands through the steering wheel is not considered).