Non-Destructive Testing

Lab capabilities

Lab capabilities

Our engineering experts and on-site inspectors have the technical expertise and experience to support you in carrying out challenging conventional and advanced NDT tasks across all relevant fields of applications.

TÜV SÜD's testing facilities include:

Thickness measurement

  • Ultrasonic thickness measurement
  • Paint/Coating thickness measurement
  • Oxide Scale measurement

Visual Testing

  • Remote Visual Inspection using Videoscope/Borescope for turbine gear box, boiler/Heat exchanger tubes etc.

Surface/Sub-surface flaw detection

  • Magnetic Particle Testing (MPI)
  • Dry/Wet Penetrant Testing (DPT/FPT)
  • Eddy current testing

Hardness testing

  • Rebound principle-based hardness testing
  • Ultrasonic impedance-based hardness testing

Welding Inspection

  • Ultrasonic flaw detection/Angle Beam Inspection/Shear wave testing
  • Advanced Ultrasound (Phased Array and TOFD)

Corrosion Mapping

  • B scanning using Ultrasonic flaw detector
  • Advanced Ultrasonic Phased Array Scanning
  • Magnetic Crawler based X-Y scanning of large carbon steel structures such as tank shell, vessel, pipeline etc.

Heat Exchanger tube testing

  • Eddy Current testing of Non-ferrous tubes
  • Remote Field testing of Ferrous tubes
  • Internal Rotary Inspection System (IRIS) for Ferrous and Non-ferrous tubes
  • Near Field Testing
  • Magnetic flux leakage testing

Special tools - Advanced NDT solutions

  • Detection of corrosion Under Insulation / Fireproofing using Pulsed Eddy Current testing (PECT).
  • Applicable for insulated tanks, pipelines, vessels, skirts, sphere legs etc.
  • Corrosion mapping using 3D Laser
  • Corrosion under support using short Range Ultrasonic Testing (SRUT)
  • Pipeline inspection using Long Range Ultrasonic Testing (LRUT).
  • Above Ground Storage Tank bottom plate testing using Magnetic Flux Leakage (MFL) testing and vacuum box.
  • Storage tank shell and roof Ultrasonic thickness measurement using Magnetic Crawler based tool.
  • Other applications such as, vertical or horizontal large structures, un-accessible large diameter pipelines, vertical structure etc.
  • Heater tubes or small diameter tube weld inspection using phased array testing and small diameter scanner. Application based Advanced & Conventional NDT services. 
  • External RFET of boiler tubes

Services beyond testing

  • WPS/PQR – Witness, verification and auditing
  • Risk Based Inspections (RBI)
  • Remaining life calculations / Condition Assessment
  • FFS – API 579
  • Failure & corrosion analysis studies
  • Asset Integrity Management
  • API compliant studies. API 570 / API 653 / API 510
  • NDT Level-I & Level-II training


Facility is accredited as per ISO/IEC 17025:2017 Standard by the National Accreditation Board for Testing and Calibration Laboratories (NABL) for its Destructive Testing (DT) and Non –Destructive Testing (NDT) services.

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