UNE-EN IEC 61689:2022 Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz (Endorsed by Asociación Española de Normalización in June of 2022.)
2022UNE-EN IEC 61689:2022 Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz (Endorsed by Asociación Española de Normalización in June of 2022.)