EN ISO 17640

Ultrasonic Non-Destructive Testing

Ultrasonic testing (UT) detects internal flaws, wall thickness, and material discontinuities in metallic and composite components without damaging them. EN ISO 17640 covers manual UT of fusion-welded joints; phased-array (PAUT) and time-of-flight diffraction (TOFD) extend the technique to automated flaw sizing. UT is essential for pressure equipment, pipelines, and structural welds.

What it measures

Internal flaw detection (cracks, inclusions, porosity)
Flaw location, size, and orientation
Wall thickness measurement
Bond integrity in bonded structures
Weld root and fusion defects

🇧🇪 NBN EN ISO 17640 🇩🇪 DIN EN ISO 17640 🇬🇧 BS EN ISO 17640 🇫🇷 NF EN ISO 17640 🇮🇹 UNI EN ISO 17640 🇪🇸 UNE EN ISO 17640 🇳🇱 NEN EN ISO 17640 🇧🇪 NBN EN ISO 16810 🇩🇪 DIN EN ISO 16810 🇬🇧 BS EN ISO 16810 🇫🇷 NF EN ISO 16810 🇮🇹 UNI EN ISO 16810

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EN ISO 17640 Non-destructive testing of welds -- Ultrasonic testing
EN ISO 16810 Non-destructive testing -- Ultrasonic testing -- General principles
ASTM E317 Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing
EN ISO 11666 Non-destructive testing of welds -- Acceptance levels for ultrasonic testing