IEC 61161 Consolidated version Revised
IEC 61161:1992+AMD1:1998 CSV
Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz
Specifies a method of determining the total radiated acoustic power of ultrasonic transducters based on the use of a radiation force balance. Provides general principles for the use of radiation force balances in which an obstacle (target) intercepts the sound field to be measured.
CHFÂ 215.-
A more recent version of this publication exists:
IEC 61161:2013