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Static VS. Dynamic Ozone Testing in Ozone Test Chambers

Aug 07 2025

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Understanding Ozone Aging Methods and Choosing the Right LIB Equipment

Ozone is one of the most aggressive environmental factors contributing to the aging of rubber, plastics, and elastomeric materials. Even at low concentrations, ozone (O₃) can lead to surface cracking, loss of flexibility, and eventual failure of products exposed to the outdoors or industrial environments. To evaluate the durability of these materials, ozone test chambers are used in laboratories to replicate ozone exposure under controlled conditions.

Two primary testing methods are used in ozone test chambers: static ozone testing and dynamic ozone testing. Understanding the difference between them is essential for selecting the appropriate method and equipment.

Static Ozone Testing

In static testing, samples are exposed to ozone gas while remaining stationary and unstressed. This type of test is designed to simulate passive ozone exposure—such as the conditions experienced by stationary rubber seals, gaskets, and insulation materials over time.

✔ Ideal For:

- Long-term weathering simulation
- Products not under mechanical load
- Surface-level cracking evaluation

Dynamic Ozone Testing

In dynamic testing, samples are placed under continuous mechanical stress—typically stretched, flexed, or rotated—during ozone exposure. This method better simulates real-world conditions where rubber materials are in motion or tension, such as automotive tires, belts, or bushings.

✔ Ideal For:

- Operational stress simulation
- Accelerated aging under mechanical tension
- Fatigue and deep crack formation analysis

Key Differences Between Static and Dynamic Ozone Testing

Feature	Static Testing \| Dynamic Testing
Sample Movement	None \| Required (e.g., tension, rotation, flexing)
Mechanical Stress	No \| Yes
Test Purpose	Simulate storage/exposure aging \| Simulate operational fatigue
Cracking Behavior	Surface-level, initial cracks \| Deep, stress-related cracking
Common Applications	Seals, insulation, gaskets \| Tires, belts, hoses, engine mounts
Standard Test Methods	ASTM D1149, ISO 1431 \| JIS K6259, ASTM D518

LIB Ozone Test Chambers – Product Features at a Glance

Ozone Concentration Range	1 – 1000 pphm
Test Room Volume	Standard: 250L – 1000L; Custom sizes available
Chamber Material	SUS304 stainless steel interior, powder-coated steel exterior
Temperature Range	Optional: Ambient to +100°C
Air Circulation System	High-efficiency fan with uniform ozone distribution
Dynamic Fixture Options	Rotating wheels, tensile fixtures, custom movement setups
Controller Interface	Programmable touchscreen (USB & Ethernet interface)
Compliance Standards	ASTM D1149, ISO 1431, JIS K6259, ASTM D518

Why Choose LIB for Ozone Test Chamber?

With over two decades of experience, LIB Industry has established itself as a reliable partner for environmental simulation solutions. Our ozone aging testing machines are used by clients in automotive, aerospace, electronics, and rubber manufacturing industries worldwide.

We provide:
Customizable test chambers to suit unique product sizes or standards
Professional guidance and training for installation and usage
Global support with CE/UL certifications and long-term technical service
Flexible solutions for R&D, quality control, or third-party compliance labs
Whether your goal is to simulate outdoor exposure or predict material fatigue under stress, LIB’s ozone test chambers deliver reliable and repeatable performance.

Conclusion

Choosing between static and dynamic ozone testing depends on the material's end-use environment. Static testing is sufficient for products in storage or minimal motion, while dynamic testing provides deeper insights into operational durability.
Contact LIB inquiry@libtestchamber.com today to get a tailored ozone testing solution that matches your technical and regulatory needs.

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