Why choose Gas Testing Analytical (GTA)?
Because your patients, your product—and your reputation—depend on it.
At Gas Testing Analytical (GTA), we specialize exclusively in the testing and validation of process gases and critical utilities for pharmaceutical, biotechnology, and medical device manufacturers. From nitrogen and oxygen to compressed air and carbon dioxide, we help ensure that every utility feeding your cleanrooms, production lines, and packaging areas meets or exceeds global regulatory standards—including USP, EP, ISO, and cGMP requirements.
Unlike generalist labs, GTA is purpose-built for utility testing. We bring 15+ years of hands-on experience, field-validated methods, and the instrumentation needed to detect what others miss—whether you’re qualifying a new facility, remediating a risk, or implementing a robust monitoring program. Our tailored testing plans integrate seamlessly into your quality system, with rapid turnaround times and clear, audit-ready reporting.
Protect your patients. Safeguard your process. Ensure compliance. Choose the experts in gas and utility testing.
Why Choose Gas Testing Analytical for Analytical Gas Testing?
Charles “Chad” Felter
Managing Partner, Gas Testing Analytical
Chad Felter is a seasoned laboratory executive and utility gas testing expert with over 15 years of hands-on experience designing, validating, and executing compliant gas sampling and monitoring programs in regulated environments. As Managing Partner of Gas Testing Analytical, Chad leads with a deep understanding of both the technical and operational demands of cGMP, USP, and ISO-aligned gas testing services for the medical, pharmaceutical, biotechnology, and medical device sectors.
🔬 Utility Gas Sampling & Monitoring Expertise
- Process Gas Sampling, Batch Release, & Validation:
Chad has overseen comprehensive gas testing programs across diverse utilities—USP purified gases including nitrogen, compressed air, oxygen, CO₂, and helium—across both legacy sites and greenfield builds. His experience spans initial site assessments, validation protocol development, commissioning new utility systems, long-term monitoring program design and execution, and testing for batch release. - On-Site Risk Mitigation:
Over the past 15 years, Chad has supported pharmaceutical manufacturers with targeted remediation of non-conforming gas systems. This includes root cause investigations, requalification efforts, and integrating monitoring improvements to meet evolving regulatory expectations and audit readiness. - Monitoring Program Leadership:
Chad has led the development of utility monitoring strategies from the ground up—establishing critical parameters, alert/action levels, sampling frequencies, and laboratory coordination to ensure consistent compliance with USP and EP monographs, FDA guidance, and internal corporate quality standards.
🧪 Broader Analytical & Operational Experience
Chad’s background includes extensive leadership in contract testing, microbiology, sterility assurance, endotoxin detection, and facility compliance. He served as General Manager and Site Head at a major U.S. CRO facility, where he directed multi-million-dollar expansions, testing service launches, and LIMS/ELN integration across complex lab environments.
Notable achievements include:
- Launching sterility, rapid sterility and endotoxin testing platforms
- Leading facility design and validation efforts for high-containment and utility-intensive labs
- Managing cross-functional quality and analytical teams across microbiology, chemistry, and utility testing units
⚙️ Systems Thinking, Culture, and Client Service
As a lab leader and consultant, Chad combines technical rigor with a people-first approach. He’s known for his ability to:
- Build safety-first lab cultures grounded in transparency, ownership, and continuous improvement
- Design quality systems that scale, from hazard assessments to digital system integrations
- Communicate clearly with clients and regulators, translating complex technical findings into actionable insights
Today, as Managing Partner, Chad brings strategic oversight and day-to-day expertise to utility gas testing services. He helps clients maintain compliance, reduce risk, and strengthen their gas quality programs through tailored sampling, validation, and monitoring solutions.
Meet the Team.
Our Values.
The foundation of everything we do—guiding every decision, interaction, and outcome in our mission to advance patient health through analytical excellence. These principles ensure we deliver trusted results while maintaining the highest standards of safety, quality, and service.
