labthink’Think for you only! Technical Specifications *) Test Range This test instrument is applicable to the determination of gas permeability of: Basic Applications Standard Configurations Labthink Instruments Co., Ltd. Printed September 2012
Open the catalog to page 1VAC-V2 is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting, and aluminum foils. Test Principle The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure chamber is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure...
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