Product Introduction
This product is based on the test principle of the differential pressure method, and is designed and manufactured with reference to ASTM D1434, ISO 2556 and other standards. With high-precision pressure sensor and automatic differential pressure maintaining technology, this machine has high test accuracy. It is suitable for the gas permeability test of films, sheets, paper, packaging and related materials in food, medicine, medical equipment, daily chemicals, tovoltaic electronics and other industries. It can be used to test high, medium and low gas barrier materials with outstanding efficiency.
Test Principle
The N500 gas permeability tester adopts the principle of differential pressure method. Place the processed sample between the upper and lower chambers, use a vacuum pump to evacuate the entire gas circuit system, and then add an atmosric pressure experimental gas to the upper chamber to form a constant pressure difference between the upper and lower chambers. Due to the pressure difference, the gas permeates from the upper cavity to the lower cavity through the film, and the system can calculate the barrier performance such as the gas permeability of the sample through the pressure change of the lower cavity.
Standard
ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-1
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