Altitude Testing Services

At Clark Testing, we specialize in providing ISO 17025-accredited altitude testing services designed to assess the durability, functionality, and performance of products exposed to low-pressure, high-altitude environments. Our services are critical for manufacturers and developers in industries such as aerospace, defense, consumer electronics, packaging, and transportation. Altitude conditions can significantly impact product performance, particularly for components transported by air or operated at high elevations. These environments can lead to pressure-related failures, seal degradation, material expansion, and reduced electrical performance, making it vital to test components under simulated altitude conditions before they reach the field.

Our state-of-the-art altitude test chamber can simulate altitudes up to 50,000 feet, allowing us to evaluate how products react to rapid or prolonged changes in atmospheric pressure. By recreating these extreme environmental conditions in a controlled laboratory setting, we help manufacturers ensure their products meet both performance and safety standards required by global industry regulations. Our altitude testing also supports product validation efforts, root cause failure analysis, and compliance with international standards, including MIL-STD-810, ASTM D6653, and IEC 60068-2-13. With decades of experience and a commitment to precision testing, Clark Testing is a trusted partner in ensuring product reliability in real-world conditions.

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Key Features of Our Altitude Chamber:

• Altitude Range: Simulates environmental conditions from sea level up to 50,000 feet

• Temperature Control: -30°F to +177°C with precise ±1°C stability for thermal cycling

• Humidity Control: Adjustable relative humidity range from 20% to 95%

• Chamber Dimensions: Spacious 72" (W) x 48" (D) x 60" (H) interior testing area

• Data Acquisition: Real-time monitoring and detailed reporting of pressure, temperature, and humidity

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Why Altitude Testing Matters

Altitude testing is essential for products that are air-transported, used in mountainous regions, or integrated into aircraft, satellites, or unmanned aerial systems (UAS). Exposure to high-altitude conditions can affect the structural integrity and performance of electronic components, packaging materials, adhesives, seals, batteries, and mechanical assemblies. Our testing process helps manufacturers identify weaknesses before products reach the market—reducing warranty claims, increasing customer satisfaction, and supporting long-term performance.

By combining altitude simulation with thermal and humidity testing, we ensure products are subjected to the full range of environmental stresses they may experience in use. This combined testing methodology allows us to evaluate component interaction under dynamic stress conditions, providing deeper insights into product design and durability.

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Industries We Serve

Our altitude testing services are used by companies across a wide range of sectors:

• Aerospace & Defense: Testing avionics, batteries, payload systems, and structural components

• Electronics & Technology: Evaluating circuit boards, sensors, and power systems in low-pressure conditions

• Medical Devices: Ensuring sterility and safety of packaged instruments during high-altitude air transport

• Automotive & EV Systems: Simulating high-altitude driving conditions to validate onboard electronics

• Consumer Products & Packaging: Verifying integrity of packaging and sealed systems under air cargo conditions

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Standards & Compliance

All altitude testing at Clark Testing is conducted to comply with industry-recognized standards, including:

• MIL-STD-810 Method 500.6 – Military standard for altitude simulation

• ASTM D6653 – Standard test method for determining the effects of high altitude on packaging

• IEC 60068-2-13 – Environmental testing procedures for altitude

Our experienced test engineers ensure proper test execution, documentation, and data reporting in alignment with these standards, giving you the confidence needed for product qualification and regulatory submissions.

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Contact Us

Need to validate your product’s performance under high-altitude conditions? Contact Clark Testing today to speak with one of our environmental testing experts. We can help you determine the best test approach for your application, provide detailed quotes, and deliver fast, reliable results from our accredited lab.