2013IEC 61161:2013 Ultrasonics - Power measurement - Radiation force balances and performance requirements
2006IEC 61161:2006 Ultrasonics - Power measurement - Radiation force balances and performance requirements
1998IEC 61161/AMD1:1998 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz; Amendment 1
1998IEC 61161:1998 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz
1992IEC 61161:1992 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz
IEC 61161/AMD1:1998 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz; Amendment 1 was changed to IEC 61161:1998 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz.
IEC 61161/AMD1:1998 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz; Amendment 1 was changed to IEC 61161:2006 Ultrasonics - Power measurement - Radiation force balances and performance requirements.