Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment (IEC 61157:2007); German version EN 61157:2007— 35 стр.
Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment (IEC 61157:2007); German version EN 61157:2007, Corrigendum to DIN EN 61157:2008-07— 3 стр.
