2014DIN EN 16392-2:2014 Non-destructive testing - Characterisation and verification of ultrasonic phased array equipment - Part 2: Probes; German version EN 16392-2:2014
1970DIN EN 16392-2 E:2012-03 Non-destructive testing - Characterisation and verification of ultrasonic phased array equipment - Part 2: Probes