Scope
i-Gastra 7100 GasPermeability Tester is designed to determine the gas transmission rate,
solubility coefficient, diffusion coefficient, and permeability coefficient of
plastic material in the forms of films, composite films, high barrier
materials, sheets, and aluminum foils
Test Procedures
A: Prepare test specimens
according to specific standards.
B: Apply
vacuum grease to the outer surface evenly 2 mm around the groove in the lower
test chamber.
C: Place
a piece of filter paper (diameter is 65mm) in the hollow groove and then place
the prepared specimen on the lower test chamber. Make sure the test specimen
contacts the lower test chamber tightly.
D: Close
the upper test chamber and tighten it.
E: Set
up the temperature controller so that the temperature required for the test
could be reached. It is necessary to check the leak tightness of the water path.
F:
Connect the vacuum pump with ripple tube and its components. Do not change the
default settings of the vacuum pump which has been setup before shipment.
