Pipeline Integrity Product Listing Non-Destructive Evaluation Performed by American Society for Nondestructive Testing (ASNT)-certified Level II and Level III technicians, our non-destructive evaluation (NDE) methods verify and drive the accuracy of in-line inspection (ILI) results while pipelines remain in service. Ultrasonic Testing Ultrasonic testing uses high frequency sound energy to… Read More Other Services Acid etch is used to visualize and evaluate indications and… Read More Optical Emissions Spectrometry / Laser Induced Breakdown Spectrometry Optical Emissions Spectrometry (OES) and Laser Induced… Read More Phased Array Considered the gold standard of ultrasonic (UT) inspection… Read More Creaform Hand-held Creaform laser profilometry is a proven… Read More Positive Material Identification (PMI) TDW has integrated a variety of NDE tools and techniques… Read More Related Content Infographic Three Steps of Pipeline Identification Read More T.D. Williamson Receives Patent for Positive Material Identification Process Company’s 680th Patent Enables Material Verification Using Non-Destructive Technique Read More Video Non-Destructive Evaluation and Repair Services Watch Video TDW has provided safe, industry-leading solutions for pressurized piping systems worldwide for more than 100 years. Our comprehensive portfolio for onshore and offshore applications includes advanced isolation, integrated pigging and integrity assessment. Request a Quote Solutions Careers Contact Information Terms & Conditions Supply Chain Statement Code of Conduct Site Map Privacy Policy Accessibility Events © 2020 T.D. Williamson, Inc. We use cookies to ensure that we give you the best experience on our website. If you continue to use this website, you agree to the terms outlined in our Privacy Policy X