NDT Services

Dunlop NDT non-destructive testingNon-destructive testing (NDT) uses a wide range of testing methods to evaluate the properties of a material, component or system without causing damage.

The terms non-destructive evaluation (NDE) and non-destructive inspection (NDI) are also commonly used to describe these tests methods. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research.

NDT is commonly used in many industries including commercial construction, mechanical engineering, forensics, failure analysis, manufacturing, military, aerospace and civil engineering to name a few.

Dunlop NDT is accredited in accordance with ISO 17025:2005 to perform inspections in the following non-destructive testing methods (both in-house and on-site):

  • Magnetic Particle Testing (MT)
  • Penetrant Testing (PT)
  • Special Inspections (ICC/IBC Compliant)
  • Ultrasonic Testing (UT)
  • Ultrasonic Thickness (UTT)
  • Visual Testing (VT)

DNDT can provide the following Nondestructive Inspection Services:

  • Anchor Bolt Inspections
  • Bolt Inspections
  • Cell Tower Weld Inspections
  • Certified Welding Inspectors
  • Continuous Field Monitoring
  • Deck/Joist Inspections
  • Fabrication Plant Inspections
  • Long-Term Field Placement
  • Mid High-Rise Structures
  • Mobile Field Inspection Services
  • Quality Program Development
  • Special Inspections (S1/S2)
  • Structural Steel Inspections
  • Welder Qualifications

Please contact us to request a complete list of capabilities and services.

Common Testing Standards and Codes

Non-destructive testing is governed by many different bodies and codes including:

  • ASTM – American Society for Testing and Materials
    • E114 – Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing
    • E164 – Standard Practice for Contact Ultrasonic Testing of Weldments
    • E165 – Standard Practice for Liquid Penetrant Examination for General Industry
    • E709 – Standard Practice for Magnetic Particle Testing
    • E1209 – Standard Practice for Fluorescent Liquid Penetrant Testing Using the Water-Washable Process
    • E1220 – Standard Practice for Visible Penetrant Testing Using Solvent-Removable Process
    • E1417 – Standard Practice for Liquid Penetrant Testing
    • E1444 – Standard Practice for Magnetic Particle Testing
  • AWS – American Welding Society
    • D1.1 – Structural Welding (steel)
    • D1.2 – Structural Welding (aluminum)
    • D1.5 – Bridge Welding
    • D1.6 – Structural Welding (stainless steel)
  • ASME – American Society of Mechanical Engineers
    • BPVC Section V – Nondestructive Examination
    • BPVC Section IX – Welding, Brazing, and Fusing
    • B31.1 – Power Piping
    • B31.3 – Process Piping
  • API – American Petroleum Institute
    • 1104 – Welding of Pipelines and Related Facilities
    • 6A – Specification for Wellhead and Christmas Tree Equipment
  • AWWA – American Water Works Association
    • C-206 – Field Welding of Steel Water Pipe
  • MIL-STD – United States Defense Standard
    • 6866 – Inspection, Liquid Penetrant (Superseded by ASTM-E1417)
    • 1949 – Inspection, Magnetic Particle (Superseded by ASTM-E1444)