Labthink International recently conducted an inter-laboratory research study for Oxygen Transmission Rate (OTR) testing of flexible materials. The study adhered to ASTM D3985 (Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor). This study involved 90 labs and represented instruments from Mocon, Illinois Instruments, Systech Illinois, Labthink, and GBPI. Below is a sampling of how the test data appears on the report.

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