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Precision OTR Testing

Labthink C203H Oxygen Transmission Rate Test System is designed and manufactured based on the coulometric oxygen analysis sensor and equal-pressure method, meeting the requirements of ASTM D3985 and other relevant standards.

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Precision OTR Testing

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  1. Precision OTR Testing Meeting ASTM D3985 for Plastic Films and Sheeting

  2. ASTM D3985 is a standard developed by the American Society for Testing and Materials (ASTM) that specifies the methodology for measuring the oxygen transmission rate (OTR) of plastic films and sheeting. This standard provides essential guidelines to ensure accuracy and consistency in test results, crucial for evaluating the barrier properties of packaging materials. 01 ASTM D3985 Overview

  3. The testing process for ASTM D3985 involves clamping a pre-treated film sample between two test chambers. Oxygen is introduced on one side, while high-purity nitrogen is introduced on the other side. The oxygen transmission through the film is monitored by a coulometric sensor that measures the concentration of oxygen that has permeated the film, enabling accurate calculation of the OTR. Test methods and processes

  4. The oxygen transmission rate (OTR) is a critical parameter in evaluating the barrier properties of packaging materials. A lower OTR indicates better protection against oxygen ingress, which is vital for preserving the freshness and extending the shelf life of perishable products. Importance of oxygen transmission rate

  5. Testing Instrument Features 02

  6. Conforms to ASTM D3985 PPB-level coulometric oxygen sensors Enables detection of minimal oxygen levels Ensures that the test can measure even the smallest transmission rates accurately Precision and sensor technology

  7. Modern oxygen transmission rate testers often feature automated control systems that regulate flow, temperature, and humidity during tests. This automation enhances repeatability and reliability, significantly reducing the potential for human error in the testing process. Automated testing capabilities

  8. Basic plastic films Various materials including high barrier films e.g. EVOH and PVDC Specialized paper-plastic composite films and metallized films. Materials innovation in packaging solutions Application scope and material types

  9. By ensuring accurate measurement of oxygen transmission rates, companies can enhance their packaging strategies, reduce waste, and meet consumer expectations for freshness and quality. Conclusions www.labthink.com trade.en@labthink.com

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