In the demanding world of heavy industrial operations, oil & gas, manufacturing, construction, and utilities, one thing is non-negotiable: weld integrity and material reliability. At Three Rivers Gamma Services (TRG), we deliver exactly that through our comprehensive in-house NDT laboratory and expert welder qualification services.

Whether you’re qualifying new welders, verifying procedures, or ensuring code compliance, our lab makes the entire process faster, more accurate, and far more convenient.

State-of-the-Art Lab Testing Capabilities

Our dedicated NDT laboratory in the Pittsburgh/Western PA region is fully equipped to handle a wide range of non-destructive testing (NDT) and materials evaluation services, including:

• Radiographic Testing (RT) – Gamma and X-Ray

• Ultrasonic Testing (UT)

• Magnetic Particle Testing (MT)

• Liquid Penetrant Testing (PT)

• Visual Inspection (VT)

• Positive Material Identification (PMI)

• Hardness Testing

• Bend Testing

• Mechanical & Destructive Testing for qualifications

With a 65% lab / 35% field service split, we’ve built our reputation on the strength of our controlled laboratory environment — where precision matters most.

Welder Qualifications & Procedure Qualification Records (PQR/WPS)

Welder performance and procedure qualifications are a core strength at TRG. Our lab provides:

• Welder Qualification Testing (WQT) to AWS, ASME, API, and other industry standards

• Welding Procedure Specification (WPS) development and qualification

• Bend, tensile, and hardness testing

• Full documentation and certification packages

• Recurring qualification support to keep your team compliant

Our experienced technicians and Certified Welding Inspectors (CWI) ensure every test meets or exceeds code requirements — helping you avoid costly rework, delays, or safety issues down the line.

Why Our Lab Is So Convenient for You

Here’s what sets TRG apart:

• Speed: Drop off or ship samples and get fast turnaround — often same-day or next-day results for many tests. No waiting on mobile crews or third-party labs.

• Controlled Environment: Lab conditions deliver more consistent, repeatable, and accurate results than field-only testing.

• One-Stop Shop: Combine welder quals, procedure testing, NDT, and documentation all under one roof.

• Local & Reliable: Based in Western Pennsylvania, we serve clients throughout PA, OH, WV, and beyond with minimal logistics hassle.

• Cost-Effective: Reduce downtime and travel expenses by leveraging our lab instead of on-site testing for everything.

Whether you’re a fabricator, contractor, manufacturer, or pipeline operator, our lab gives you peace of mind without slowing down your project schedule.

Trusted Partner for Industrial Excellence

At Three Rivers Gamma Services, we combine decades of experience, certified technicians, and modern equipment to deliver testing you can trust. Our clients rely on us for compliance, quality assurance, and operational efficiency across critical infrastructure projects.

Ready to experience the TRG lab advantage?

Contact us today to discuss your welder qualification needs, procedure testing, or full NDT program. Drop off samples, schedule a consultation, or request a quote — we make it easy.