North Texas Section

The American Society for Nondestructive Testing

Meeting Schedule
Meeting Location
Section News

2016 - 2017 Meeting Schedule

Every third Tuesday September through May

6:00 p.m. - Dinner/Social
7:00 p.m. - Speaker


Sept 20th - Tuesday

Bubble Leak Testing Ė Roger Walters

Bubble Leak Testing is used extensively in the manufacturing and maintenance of service equipment valves mounted on railroad tank cars. The presentation will discuss Federal and the Association of American Railroads Specifications mandating leak testing valves. Included in the presentation are photos showing Bubble Leak Testing implementation.

Roger Walters has been a longtime member of the ASNT North Texas Section. He has been engaged in nondestructive testing in the DFW Metroplex area since the 1960's. Mr. Walters has been employed by General Dynamics, Bell Helicopter, Brown and Root (Comanche Peak Nuclear Station), various independent labs and covered 5 states as an NDT equipment technical sales representative and finally Trinity Industries (Rail Car Division). Roger was recruited in 1998 by Trinity Industries, Railcar Division, in Dallas, Texas. He was recruited to write a manual to meet the new Federal CFR requirements for NDT examination of tank cars and to train technicians to perform the testing. The employment with Trinity spanned 11 years. He is currently self-employed providing ASNT NDT Level III solutions for clients. (website:


Oct 18th - Tuesday

Each year the ASNT North Texas Section has at least one meeting dedicated to an interesting, but Non-NDT related subject. This year it will be our October 18th meeting.

Brad & Alicia Mullins will be speaking about the history & benefits of Whole Body Cryotherapy. Brad and Alicia are the founders and operators of Cryo-X, the first privately owned and most successful cryosauna company in the U.S.

Alicia graduated from Texas Wesleyan University in 2011 with a Bachelorís of Science Degree in Mass Communications. Brad graduated from Texas Wesleyan University in 2008 with a Bachelorís Degree in International Business.

While it may be new to the United States, the cryosauna was originally developed in Japan in 1978 to treat rheumatoid arthritis, and the benefits have been studied and refined in Europe since that time. Benefits range from energy to pain relief and improved sleep! Come learn about the benefits, and see why so many people choose to submerge themselves in temperatures of -275įF. Or as Cryo-X t-shirts say -- I went to the coldest place on earth naked.


Nov 15th - Tuesday

The Use of UAVís for NDT Inspections - Marco Zvanik, C.E.O. Ventus Wind

Marco is a graduate of Texas A&M University where he received a Bachelorís Degree in Maritime Systems Engineering and Ocean Engineering. He has more than 28 years of experience in the manufacturing and inspection of wind turbine rotor blades, having worked for multinational companies such as DIAB, Owens Corning, SGS, Broadwind Energy and BFG International. Marco is considered a Subject Matter Expert on the use of composite materials for both marine and wind turbine rotor blades and is regularly called in to determine root cause analysis.

Ventus Wind was the first UAV inspection company in North America and has performed NDT inspections of wind turbine rotor blades, pipelines, bridges and solar power generation facilities using a wide array of sensing equipment, including digital cameras, infrared sensors and is developing a system for methane gas detection.

Mr. Zvanik is also the Vice President of Business Development for a Bay Area start-up company called Seriforge and works closely with several other companies all under incubation from Lemnos Labs.


December 8th - Thursday - 6PM

ASNT NTX Christmas Party

Where: Esperanzas (2122 N Main St, Fort Worth, TX 76110 - near Joe T's)

Details: We will be having a mexican Christmas feast! They will be serving nacho and beef chimichanga appetizers. The main course will include enchiladas and beef & chicken fajitas. The cost will be $5.00 per person


Jan 17th - Tuesday

Shearography - Glenn Rodriguez, Bell Helicopter Textron

Mr. Rodriguez has a B.S. Industrial Technology degree from Texas A&M Commerce and an Associate Applied Science NDI Degree from Tarrant County Junior College. He is also holds a Six Sigma Black Belt Certification.

Glenn has over 35 years of experience in Quality and Nondestructive Testing. He is currently the Quality Assurance Manager and Responsible Level III at Bell Helicopter Textron where he has been employed for over 30 years.


Feb 21st - Tuesday

Composite Defects - Greg Marshall, Quality Synergistics

Mr. Marshall is president of Quality Synergistics, providing training and consulting services for the NDT community.

He has held positions as Chief over Nonmetallic Materials Laboratories, Nondestructive Evaluation Laboratories and Field Investigation Laboratories in his 20+ year employment at Bell Helicopter Textron.

His education includes Associate degree in Mechanical Technology (Tarrant County College), Bachelor of Business Administration (Dallas Baptist University), Master of Business Administration (Dallas Baptist University) and Master of Science Engineering Management (University of Texas at Austin).

Mr. Marshall currently provides ongoing level III support to NDE Labs, Inc.


Tue. Mar. 21
Matt Roberts - VMI ( A Close-Up Look at Computed Radiography: Past, Present and Future.)

Mr. Roberts is Director of Operations for VMI (Virtual Media Integration). He is a member of ASNT and a voting member of ASTM E07 Committee for Non-Destructive Testing. He is an ISO auditor, and he has 10 years experience in CR manufacturing, including product development and release for CR and DDA.

Tue. Apr. 25 NOTE: This meeting is on the 4th Tuesday this month
William Cronberger - Business Development Agent for NDT Classrooms
(How Training Affects Competency on the Job)
Lonnie McEntire - M2M (demonstration of Gekko phased array unit at 6pm)

Tue. May 16
Dr. Ken Reifsnider - Presidential Distinguished Professor and Director of the Institute for Predictive Performance Methodologies at UTA (Nondestructive Methods of Predicting the Future of Composite Materials; Developments and Opportunities)
AND Clinton Grant - Dean of the Center of Excellence for Aviation, Transportation and Logistics at Tarrant County College (on starting an NDT program at TCC)


Meeting Benefits
• Accrue Recertification Points
• Network with the NDT Community
• Get Informed on Current Technologies
• Receive a $10.00 Credit Towards Meal Purchase


Meetings 2005-2014

Meeting Schedule for 2005-06
Meeting Schedule for 2006-07
Meeting Schedule for 2007-08
Meeting Schedule for 2008-09
Meeting Schedule for 2009-10
Meeting Schedule for 2010-11
Meeting Schedule for 2011-12
Meeting Schedule for 2012-13
Meeting Schedule for 2013-14
Meeting Schedule for 2014-15