UNE-EN ISO 20769-1:2019 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)
2019UNE-EN ISO 20769-1:2019 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)