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DIN EN 61157 [Withdrawn] references following documents: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 60050-801 1994-07 International Electrotechnical Vocabulary - Chapter 801: Acoustics and electroacoustics More 
IEC/TR 60854 1986 Methods of measuring the performance of ultrasonic pulse-echo diagnostic equipment More