Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 2: Probes (ISO 22232-2:2020); German version EN ISO 22232-2:2020— 67 стр.
Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes; German version EN 12668-2:2010— 55 стр.
Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 2: Probes (ISO/DIS 22232-2:2018); German and English version prEN ISO 22232-2:2018
Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes; German version EN 12668-2:2010— 55 стр.