DIN EN ISO 20769-1:2018 Non-destructive testing - Radiographic inspection of corrosion and deposits in pipes by X- and gamma rays - Part 1: Tangential radiographic inspection (ISO 20769-1:2018); German version EN ISO 20769-1:2018 has been changed from DIN EN 16407-1:2014 Non-destructive testing - Radiographic inspection of corrosion and deposits in pipes by X- and gamma rays - Part 1: Tangential radiographic inspection; German version EN 16407-1:2014.
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