DIN EN ISO 22232-3:2021 Non-destructive testing - Characterization and verification of ultrasonic test equipment - Part 3: Combined equipment (ISO 22232-3:2020); German version EN ISO 22232-3:2020 was changed to DIN EN 12668-3:2014 Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 3: Combined equipment; German version EN 12668-3:2013.
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