Reference standards available for calibration parameters

  • Length (From mm to meters)
  • Mass (Starting from 1g)
  • Temperature (upto 1000 oC)
  • Force (upto 100 Ton)
  • Pressure (upto 8000psi)
  • Frequency


Calibrated Equipment are used as reference for calibration

  • Micrometers
  • Light meters
  • Thermometers
  • Vernier calipers
  • Dead weight tester (For Pressure gauges)
  • Frequency Counter
  • Tachometer (For RPM Count)
  • Proving Rings (For Universal Testing Machine)
  • Stage Micrometer/step wedge
  • Welding Machine calibrator


  • Magnetic Yoke
  • Ultrasonic Flaw Detector
  • Eddy Current Flaw Detector
  • Thickness Meter
  • Densitometer
  • Elcometer
  • Radiographic viewer
  • Durometer
  • Surface Roughness Meter etc

Non- destructive Testing of Concrete

NCNDT has established a facility for the non-destructive testing of concrete structures. This facility is capable of following jobs:

  1. Testing of concrete structures for uniformity and compressive strength.
  2. Determination of defects in concrete (voids, cracks, etc.).
  3. Testing of concrete structures for changes in properties with time.
  4. Ultrasonic testing of concrete structures.
  5. Determination of location of steel bars in concrete structures.
Testing for steel bars location in a concrete column
The concrete testing facility is equipped with Schmidt hammer, PUNDIT ultrasonic tester, rebar locator, fresh concrete tester, impact echo test system, radioisotope gauge and penetration resistance tester.
NCNDT is also in the process of enhancing concrete testing facility with the cooperation of Planning Commission of Pakistan.

Advanced NDT Techniques

NCNDT is in the process of up-gradation of its facilities in order to gradually achieve self reliance in the pre-service and in-service inspections of Class 1, 2 & 3 welds in pipes and components of Power Plants and National Industrial Units.

OmniScan for TOFD with Motorized WeldROVER Scanner
For provision of state-of-the-art services, NCNDT has set-up facilities for Digital Industrial Radiography (DIR), Thermography, Time-of-Flight Diffraction (TOFD), Phased Array and developed a Digital Fluoroscope. Computed Tomography facility is also being set-up at NCNDT.

X-Ray Film Digitizer and Computed Radiography System