Oxygen/Air Permeability Testing Service

Oxygen and air permeability testing play a critical role in assessing the barrier characteristics of materials, especially those employed in packaging and environmental settings. These assessments gauge the ability of a material to inhibit the transmission of gases, which is vital for upholding product integrity and safety.

Measurement Techniques

At the core of permeability testing lie the foundational principles of gas diffusion physics. As outlined by Fick's laws of diffusion, gas molecules migrate from regions of higher concentration to those of lower concentration. The permeability of a material is commonly assessed through the permeability coefficient, which signifies the material's capacity to facilitate gas transmission.

Two primary techniques are employed in permeability testing:

Differential Pressure Method: This method involves establishing a pressure differential across the material sample. Gas is introduced on one side of the sample, and the rate at which it permeates to the opposite side is measured. This method can be further classified into:

Constant Pressure Method: In this method, a constant pressure is maintained on one side of the material, and the flow rate of gas through the material is measured. This technique is particularly useful for assessing the permeability of high-flow rate materials.

Why Do Oxygen/Air Permeability Testing?

• Environmental Impact Reduction: Oxygen/air permeability testing plays a crucial role in minimizing the environmental footprint of packaging materials by confirming the desired barrier properties. This can help lessen the reliance on excessive or non-recyclable materials, promoting environmental sustainability.
• Enhanced Product Quality and Safety: Products sensitive to oxygen, such as food and pharmaceuticals, necessitate packaging with minimal permeability to uphold their quality and safety. Oxygen/air permeability testing ensures that these products are shielded from spoilage and contamination, safeguarding consumer health.
• Cost-Effectiveness: Determining the ideal barrier properties for a material through permeability testing can result in cost savings by curbing material wastage and prolonging product shelf life, enhancing operational efficiency.
• Regulatory Adherence: Numerous industries are bound by stringent regulations pertaining to packaging and material standards. Oxygen/air permeability testing aids manufacturers in meeting these regulatory requirements, ensuring compliance and adherence to industry guidelines.

Our Services

At CD BioSciences, we offer comprehensive oxygen and air permeability testing services tailored to the needs of various industries. Our services are designed to provide accurate and reliable data to ensure the quality and safety of your products.

Workflow of Oxygen/Air Permeability Testing

Sample Preparation

Ensuring that samples meet the necessary size and cleanliness requirements.

Initial Calibration

Calibrating the equipment to ensure accuracy and precision during testing.

Testing Procedure

Conducting the permeability test using the selected method—either differential or constant pressure.

Data Collection

Recording the flow rates and pressures to determine the permeability coefficients.

Analysis and Reporting

Compiling the data into a comprehensive report, detailing findings and implications for material performance.

Methods of Oxygen/Air Permeability Testing

Our testing services utilize both the differential pressure and constant pressure methods to provide robust data on material permeability. The differential pressure method is the most widely used, allowing for detailed analysis of how gases interact with different materials under controlled conditions.

Sample Requirements

Our service accommodates a wide range of sample types, including films, sheets, coextrusions, metals, foils, laminates, and packages. To ensure accurate testing results, specific sample requirements must be adhered to:

• Sample Size: Typically, samples should be sized at approximately 100mm x 100mm.
• Material Thickness: Testing can accommodate a thickness range from 10 micrometers to 10 millimeters.
• Conditioning: Samples must be clean and free from contaminants that could alter permeability measurements.

Why Choose Us?

• Expert Consultation: Clients receive personalized guidance on material selection and testing methodologies.
• Advanced Technology: Utilization of cutting-edge testing equipment that adheres to international standards.
• Comprehensive Reporting: Detailed analysis and reporting of results, including graphical representations for clarity.
• Flexible Service Options: Customizable testing solutions to meet the specific needs of diverse industries.

If you are interested in our services, please contact us for more information.

Our products and services are for research use only and cannot be used for any clinical purposes.