NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 61157 [Withdrawn] references following documents:

Document number Edition Title
IEC 60469-1 1987 Pulse techniques and apparatus. Part 1 : Pulse terms and definitions More 
IEC 61102 1991-11 Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0,5 MHz to 15 MHz More 
IEC 61161 1992-07 Ultrasonic power measurement in liquids in the frequency range 0,5 MHz to 25 MHz More 
IEC/TR 60854 1986 Methods of measuring the performance of ultrasonic pulse-echo diagnostic equipment More