: A visible dye or fluorescent liquid seeps into surface cracks.
: High-frequency sound waves reflect off internal cracks or measure thickness. NON DESTRUCTIVE TESTING
💡 : Most sophisticated NDT methods still require a preliminary Visual Test (VT) to identify obvious flaws before using more expensive equipment. If you'd like to dive deeper into a specific area: : A visible dye or fluorescent liquid seeps
: Uses electromagnetic induction to detect flaws in conductive materials without contact. Essential Resources NON DESTRUCTIVE TESTING