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![ISO 17640:2018 - Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, ISO 17640:2018 - Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels,](https://cdn.standards.iteh.ai/images/75737/7eceabf2b8634a20a139cec42654b4bb/page1.jpg)
ISO 17640:2018 - Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels,
![DIN EN ISO 17640:2011 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2010); German version EN ISO 17640:2010 DIN EN ISO 17640:2011 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2010); German version EN ISO 17640:2010](https://webstore.ansi.org/cover-pages/small/DIN/1755271.jpg)
DIN EN ISO 17640:2011 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2010); German version EN ISO 17640:2010
![ISO 17640:2010 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment ISO 17640:2010 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment](https://webstore.ansi.org/cover-pages/small/ISO/ISO+17640-2010.jpg)
ISO 17640:2010 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment
![ONORM EN ISO 17640:2019 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2018) ONORM EN ISO 17640:2019 - Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2018)](https://webstore.ansi.org/cover-pages/small/ON/ONORM+EN+ISO+17640_2019.jpg)