C101B Gas Permeability Test System is based on the differential pressure method,and is professionally applicable to the determination of gas transmission rate ofplastic films, composite films, high barrier materials, sheets, and metal foilsat different temperatures. The test system conforms to GB, ISO, ASTM and otherinternational standards.
The pre-conditioned specimen is mounted in the test cell as to form a sealed barrier between two chambers. The lower-pressure chamber (lower chamber) is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure chamber (upper chamber) and a constant pressure (adjustable) difference is generated between the two chambers. The gas permeates through the specimen from higher pressure side into the lower pressure side. The gas permeability of the specimen can be obtained by analyzing the pressure changes in the lower chamber.
ISO 15105-1、ISO 2556、GB/T 1038-2000、ASTM D1434、JIS K7126-1、YBB 00082003
Gas transmission rate test of various plastic films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber aluminum foil composite films and many others
Gas transmission rate test of PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheet materials
Table 1: Test Parameters Note2
|Vacuum Degree of Test Chamber||Pa||≤ 20|
|Additional Functions||GMP Computer System requirement||Optional|
|TC03 Temperature control device||Optional|
Table 2: Technical Specifications
|Test Cell||1 Cell|
|Specimen Size||3.8” x 3.8”（9.7cm×9.7cm）|
|Specimen Thickness||≤120 Mil（3mm）|
|Standard test area||38.48cm2|
|Test Gas||O2、N2、CO2 etc.（Outside of supply scope）|
|Gas Pressure||72.5 PSI / 500 kPa|
|Port Size||Φ6 mm PU tubing|
|Instrument Dimension||12.9” H x 16.9” W x 15.7” D (33cm× 43cm× 40cm)|
|Power Supply||120VAC±10% 60Hz / 220VAC±10% 50Hz（one of two）|
Table 3: Product Configuration
|Standard Configuration||Instrument mainframe, vacuum pump (China), sampler, vacuum grease, Φ6 mm PU tubing|
|Optional Parts||Professional software, TC03 temperature control device, GMP Computer System requirement, Micro-printer|
Note 1: The described product functions are subject to the specification in "Technical Parameters" "Table 1: Test Parameters".
Note 2: The parameters in the table are measured in Labthink laboratory by professional operators according to the requirements and conditions stapulated in laboratory environmental standards.