Clark Testing

09/06/2026

From rail cars and nuclear power plants to spacecraft headed for the Moon, some of the world’s most important equipment must first survive a trip to Jefferson Hills.

08/28/2026

A message from Paul Heffernan, CEO, Clark Testing:

As football season approaches, it seems like the perfect time to recognize a team I’m especially proud of — the professionals at Clark Testing.

Day after day, our employees demonstrate the technical expertise, professionalism, and commitment our customers depend on to validate critical equipment and components against demanding military, aerospace, and environmental requirements.

And our team recently added another important credential in support of the U.S. defense industrial base: Clark Testing has successfully achieved CMMC Level 2 certification.

For defense contractors and their supply chains, cybersecurity is now an important part of choosing a trusted testing partner. Combined with Clark Testing’s ITAR registration, ISO/IEC 17025 accreditation, U.S.-based facilities, and extensive defense testing capabilities, CMMC Level 2 further strengthens our ability to securely support sensitive defense programs.

Clark Testing provides comprehensive qualification, validation, and certification testing capabilities, including:

• MIL-STD-810 Environmental Testing
• MIL-S-901 / MIL-DTL-901 High-Impact Shock Testing
• MIL-STD-167 Shipboard Vibration Testing
• MIL-STD-461 Electromagnetic Compatibility Testing
• RTCA DO-160 Environmental Testing for Airborne Equipment

From cybersecurity and controlled information to the test laboratory and final data, our goal is simple: give defense customers confidence that their programs are being supported by a testing partner equipped for the mission.

That takes technology, facilities, and certifications — but most importantly, it takes a great team.

I’m proud of ours.

08/24/2026

Workplace exposures aren't always obvious. Understanding them starts with the right data.

Effective industrial hygiene requires the right combination of sampling, analytical testing, and experienced technical support.

Clark Testing supports manufacturers, EHS professionals, and industrial hygiene consultants with services including:

• Industrial hygiene consulting
• Air and exposure sampling
• Metals and elemental analysis
• Organic v***r analysis
• Crystalline silica testing
• Gravimetric analysis
• OSHA and NIOSH method support
• Laboratory testing and analytical support

Our team can also help identify appropriate sampling methods and media, provide sampling media, and assist with special sample-handling requirements.

Whether you're evaluating an existing exposure concern, planning a new sampling program, or looking for a reliable laboratory resource for client projects, Clark can help.

Learn more about our Industrial Hygiene capabilities:

www.clarktesting.com

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07/27/2026

Petroleum coke value depends on quality and consistency.

Clark Testing provides independent analytical testing to help verify specs, support COAs, monitor sulfur trends, and protect product value.

https://clarktesting.com/service/analytical-chemistry-testing-services/petroleum-coke-testing/

07/13/2026

More force. Larger payloads. More demanding test programs.

Clark Testing’s newly commissioned 44,000 lbf electrodynamic shaker system expands our capacity for high-force vibration, shock, and multi-axis testing.

Key capabilities include:

Up to 44,000 lbf sinusoidal and random force
Up to 88,000 lbf classical shock
Frequency capability from 1 Hz to 2,000 Hz
Payload capacity up to 10,000 lb
Large test surface for substantial assemblies

Built for demanding MIL-STD qualification and complex real-world simulation.

https://clarktesting.com/service/vibration-testing/

07/04/2026

Happy Fourth of July from all of us at Clark Testing!

Today, we celebrate the freedom, resilience, and spirit that make our country strong. We’re proud to support American industry with reliable testing, trusted expertise, and a commitment to quality every step of the way.

Wishing our customers, partners, and team members a safe and happy Independence Day!

06/30/2026

🔬 Every Great Product Has One Thing in Common: Confidence Before Launch.

Whether you're developing equipment for aerospace, defense, power generation, medical devices, transportation, or industrial manufacturing, performance isn't something you hope for—it's something you validate.

When reliability matters, partner with a team dedicated to helping you reduce risk, accelerate qualification, and bring products to market with confidence. Clark Testing has been providing independent product qualification and design verification services for decades, serving as an extension of customers' engineering and R&D teams.

🌐 Learn more: https://clarktesting.com/

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06/23/2026

We're proud to be featured by the Pittsburgh Technology Council and TechVibe as they take an inside look at Clark Testing and the work our amazing team does each and every day.

For more than 30 years, we have partnered with manufacturers, engineers, and innovators to validate products under real-world conditions through:
✅ Vibration Testing
✅ Seismic Qualification
✅ EMC Testing
✅ Environmental Aging & Life Cycle Testing
✅ Structural & Load Testing
✅ Product Qualification & Certification

Our mission is simple: help customers bring safer, stronger, and more reliable products to market with confidence.

🎥 Watch the feature:

From rail cars and nuclear power plants to spacecraft headed for the Moon, some of the world’s most important equipment must first survive a trip to Jefferson Hills.

06/18/2026

At Clark Testing, we help manufacturers build safer, stronger, and more reliable products through comprehensive testing and engineering services.

From concept validation to certification support, our team provides the data and confidence needed to make critical engineering decisions.

✔ Mechanical Testing
✔ Environmental Testing
✔ EMC & Electrical Testing
✔ Chemical & Materials Analysis
✔ Failure Analysis
✔ Engineering Services

Learn more: www.clarktesting.com

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06/09/2026

Petroleum coke quality impacts fuel value, compliance, performance, and profitability.

Clark Testing delivers independent, ASTM-compliant testing for sulfur, BTU, moisture, ash, HGI, trace metals, and more—helping you make confident operational and commercial decisions.

✔ Independent Third-Party Laboratory
✔ Fast Turnaround Times
✔ Trusted Results

📞 (412) 387-1001
🌐https://lnkd.in/gHR9b4EH