Ensuring Food Packaging Barrier Performance with Oxygen Transmission Rate Testing Oxygen transmission rate (OTR) plays a crucial role in determining the shelf life and freshness of food products. Excess oxygen permeating through packaging materials can cause oxidation, spoilage, and quality degradation. Therefore, measuring and controlling oxygen transmission is essential for ensuring the safety and stability of packaged food. Modern food manufacturers rely on oxygen transmission rate testers to evaluate the barrier properties of films, laminates, and containers. Accurate OTR data helps in selecting optimal packaging materials and improving the product’s storage performance. Coulometric Sensor Method The Coulometric sensor method is a precise and internationally recognized technique for OTR measurement (in accordance with ASTM D3985, ISO 15105-2, and JIS K7126). In this method:

A pure oxygen stream passes on one side of the test specimen, while nitrogen is on the other. As oxygen permeates through the material, it is detected by a Coulometric sensor, which measures the oxygen flow in real-time. The result provides highly accurate OTR values, even for materials with extremely low permeability. This non-destructive, stable, and sensitive testing approach ensures reliable evaluation of packaging barrier performance for films, bottles, and containers. Product Features • 7-inch color touchscreen with graphical user interface (GUI). • This instrument is designed and manufactured...

• High-precision coulometric sensors ensure high accuracy and repeatability of the OTR measurement system. • Three diffusion cells are integrated into a single instrument and share the same temperature and humidity, ensuring consistent test conditions across all test cells. • Three distinct or equivalent specimens can be tested individually, providing independent results in a single operation. • The high-precision temperature control system can precisely regulate temperature within the range of 10°C to 60°C, with an accuracy of up to ±0.1°C. • A reference film for fast calibration ensures accurate...