product details

Thin film permeability tester Based on the testing principle of pressure difference method, it is a professional gas permeability tester for thin film samples, suitable for plastic films, composite films, high barrier materials

Measurement of gas permeability, solubility coefficient, diffusion coefficient, and permeability coefficient of sheet and metal foil at various temperatures.

Thin film permeability testerProfessional skills

Simultaneously measure the gas permeability, solubility coefficient, and diffusion coefficient of the sample

Three independent testing chambers can simultaneously test three identical or different samples

Wide range, high-precision temperature and humidity control to meet various testing conditions

Provide a proportional and fuzzy dual test process judgment mode

The testing range can be expanded as needed to meet the requirements of high transmittance testing

Can fit data at any temperature and easily obtain experimental results under different conditions

Support testing for toxic gases and flammable and explosive gases (requires modification)

The system adopts computer control, and the entire experimental process is automatically completed

Provide standard membranes for rapid calibration to ensure the accuracy and universality of detection data

Equipped with RS232 universal data interface for convenient data transmission

Support Lystem ™ Laboratory data sharing system, unified management of test results and testing reports

Testing principle

Using the principle of differential pressure testing, the pre processed sample is placed between the upper and lower testing chambers and clamped. Firstly, evacuate the low-pressure chamber (lower chamber)Reason, then evacuate the entire system;

When the specified vacuum degree is reached, close the lower chamber of the test, fill the high-pressure chamber (upper chamber) with a certain pressure of test gas, and ensure that

Create a constant pressure difference (adjustable) on both sides of the sample;

In this way, the gas will permeate from the high-pressure side to the low-pressure side under the action of the pressure gradient, and through the pressure inside the low-pressure side

By monitoring and processing, various barrier parameters of the tested sample can be obtained.