IEC 63009 Ed. 1.0 b:2019
IEC 63009 Ed. 1.0 b:2019
Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 20 kHz to 500 kHzstandard by International Electrotechnical Commission, 07/11/2019
standard by International Electrotechnical Commission, 07/11/2019