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Non-Destructive Testing (NDT) is the examination of an object or material with technology that does not affect its future usefulness. NDT techniques do not harm or destroy the object under test. NDT can provide an excellent balance of quality control and cost-effectiveness without affecting manufacturing yield.
The term "NDT" includes many methods that can:
NDT can and should be used in any phase of a product's design and manufacturing process, including materials selection, research and development, quality assurance and production. Non-Destructive Testing is also known as Non-Destructive Evaluation (NDE) or Non-Destructive Inspection (NDI).
A more in-depth comparison of Non-Destructive Testing methods is available via our learn portal.
 Excellent |  Fair |  Poor |
| RAM Resonant Acoustic | ET Eddy Current | MT/PT Magnetic/ Penetrant | UT Ultrasonic | RT Radiography | |
|---|---|---|---|---|---|
| Defect/Issue | |||||
| Cracks/Chips/Voids | | | | | |
| Material Properties | | | | | |
| Missed Operations | | | | | |
| Structural Integrity | | | | | |
| Product Lot Variation | | | | | |
| Defect Location | |||||
| Surface (External) | | | | | |
| Internal | | | | | |
| Brazing/Bonding/Welding | | | | | |
| Speed/Training/Cost | |||||
| Throughput | | | | | |
| Training/Certification | | | | | |
| Total Inspection Costs | | | | | |
| Automation Capacity | |||||
| Quantitative Results | | | | | |
| Ease of Automation | | | | | |
| Cost of Automation | | | | | |
NDT-RAM™ is short for Nondestructive Testing Resonant Acoustic Method. NDT-RAM is Resonant Inspection (RI) for nondestructive detection of structural differences in parts.