UNE-EN 61157:2007/A1:2013 Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment (Endorsed by AENOR in May of 2013.)
2013UNE-EN 61157:2007/A1:2013 Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment (Endorsed by AENOR in May of 2013.)