Non-destructive testing (NDT) encompasses all inspection and evaluation methods that assess pipeline integrity without damaging or altering the material being tested.

Non-destructive testing (NDT) encompasses all inspection and evaluation methods that assess pipeline integrity without damaging or altering the material being tested. Also known as non-destructive evaluation (NDE), NDT is fundamental to pipeline safety and regulatory compliance throughout the pipeline lifecycle.

Common NDT methods used in pipeline integrity:
• Ultrasonic Testing (UT) — wall thickness measurement and crack detection using sound waves.
• Magnetic Flux Leakage (MFL) — inline and aboveground corrosion detection using magnetic fields.
• Radiographic Testing (RT) — X-ray or gamma imaging of welds and internal structures.
• Magnetic Particle Testing (MT) — surface and near-surface crack detection.
• Visual Testing (VT) — direct surface examination for external defects.
• Eddy Current Testing (ECT) — surface defect detection using electromagnetic induction.
• Current Magnetometry Inspection (CMI) — EMPIT’s aboveground technology for comprehensive pipeline assessment.

EMPIT’s CMI technology represents the next generation of NDT for buried pipelines — providing corrosion detection, geometry mapping, depth of cover measurement, and coating assessment from the surface without excavation or internal access.