DIN EN ISO 20769-2 E:2017-09 Non-destructive testing X-ray and gamma ray radiographic inspection of pipeline corrosion and deposits Part 2: Double-wall radiographic inspection (draft)
2018DIN EN ISO 20769-2:2018-12 Non-destructive testing - Radiographic inspection of corrosion and deposits in pipes by X- and gamma rays - Part 2: Double wall radiographic inspection (ISO 20769-2:2018); German version EN ISO 20769-2:2018
2018DIN EN ISO 20769-2:2018 Non-destructive testing - Radiographic inspection of corrosion and deposits in pipes by X- and gamma rays - Part 2: Double wall radiographic inspection (ISO 20769-2:2018); German version EN ISO 20769-2:2018
1970DIN EN ISO 20769-2 E:2017-09 Non-destructive testing X-ray and gamma ray radiographic inspection of pipeline corrosion and deposits Part 2: Double-wall radiographic inspection (draft)