DM2/330 Differential and Equal Pressure Method Gas Permeability Tester is based on differential and equal pressure method, and is professionally applicable to the gas permeability test of films and packages.

It is designed to test the gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, laminated films, high barrier material, sheets, aluminum foils and back-sheets as well as bottles, pouches, jars and boxes made of plastic, rubber, paper, glass, metal and other materials.

Standards
ISO 15105-1 -- Plastics - Film and sheeting - Determination of gas-transmission rate-Part 1: Differential-pressure method 
ISO 15105-2 -- Plastics - Film and sheeting - Determination of gas-transmission rate-Part2: equal-pressure method
ISO 2556 -- Determination of the gas transmissioni rate of films and thin sheets under atmospheric pressure - Manometric method
ASTM D3985 -- Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor
ASTM F2622 -- Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using Various Sensors
ASTM F1307 -- Standard Test Method for Oxygen Transmission Rate Through Dry Packages Using a Coulometric Sensor
ASTM F1927 -- Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector
ASTM D1434 -- Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting