OVE EN IEC 61689:2021 Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz (IEC 87/769/CDV) (english version)
2021OVE EN IEC 61689:2021 Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz (IEC 87/769/CDV) (english version)