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Gas Permeability Tester

Product catalog summary

Overview: The PERME VAC-V2 Gas Permeability Tester by Labthink Instruments Co., Ltd. is designed to measure gas permeability rate, solubility coefficient, diffusion coefficient, and permeability coefficient across various materials such as plastic films and foils at different temperatures.

Characteristics: The device features computer control with full automation, two testing modes (proportional and non-proportional), and three independent chambers. It offers constant temperature control, optional humidity control, and data curve fitting at any temperature. The tester can handle poisonous and explosive gases, includes rapid calibration with a reference film, and supports RS232 and network transmission interfaces.

Principle: The specimen is placed between two chambers, with the lower chamber vacuumized. Test gas is introduced to the upper chamber, maintaining a constant differential pressure. The gas permeates through the specimen, and pressure changes in the lower chamber are monitored to determine barrier parameters.

Technical Indexes: The test range is 0.05 to 50,000 cm³/m²•24h•0.1MPa, extendable to over 500,000 cm³/m²•24h•0.1MPa. Temperature control ranges from 5ºC to 95ºC with an accuracy of ±0.1ºC. Humidity control ranges from 0%RH to 100%RH with an accuracy of ±1%RH. The vacuum resolution is 0.1Pa, and the vacuum degree is less than 20Pa. The specimen size is Φ97mm, with a transmission area of 38.48cm². The device supports gases like O2, N2, and CO2, with a test pressure range of -0.1MPa to +0.1MPa.

Standards: The tester complies with ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-A, GB 1038, and YBB 00082003 standards.

Configuration: The standard configuration includes the mainframe, temperature controller, software, sample cutter, vacuum grease, vacuum pump, and filter paper. Optional items include blades, oil for the vacuum pump, and a humidity generator. Users must provide their own test gas cylinder and distilled water.

Catalog excerpts

untitled table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:8.00pt "Arial", sans-serif; } .font2 { font:11.00pt "Arial", sans-serif; } .font3 { font:19.00pt "Arial Black", sans-serif; } .font4 { font:32.50pt "Impact", sans-serif; } I o ht h in If PERME® VAC-V2 Gas Permeability Tester WPIIIHHI PERME VAC-V2 Gas Permeability Tester is applicable in the measurement of gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, high barrier material, s heets, foils, and etc. Computer control, full automatic testing; Diffusion coefficient, solubility coefficient and permeability coefficient measurement. Two testing modes of proportional and non-proportional; Measure range extension block; 3 independent chambers; Constant temperature control; Optional humidity control; Data curvefitting function at any temperatures. Can be extended to cover the tests for poisonous and explosive gases; Rapid calibration with reference film; RS232 interface; Network transmission interface for LAN data management and Internet data transmission. Put the pre-conditioned specimen between the upper chamber and chamber, clamp it tightly. First vacuumize the low-pressure chamber (lower chamber), and then the whole system. When the specified degree of vacuum is achieved, shut off the lower test chamber and feed test gas to the upper test chamber (high pressure chamber) until certain pressure is reached. Ensure that a constant differential pressure (adjustable) is maintained across the specimen. Hence under the gradient of differential pressure the test gas permeates from the high-pressure side to the low-pressure side. By monitoring and measuring the pressure in the low-pressure side we can get various barrier parameters of the tested specimen. Technical Indexes Test Range: 0.05 ~ 50,000 cm3/m2-24h -0.1MPa (Routine) Upper limit is not less than 500,000 cm//m2«24h -0.1 MPa (extension volume) Note: Routine and extension volume can be selected using extension volume blocks.. Temp. Control Range: 5°C~95°C Temp. Control Accuracy: ±0.1°C Humidity Control Range: 0%RH, 2%RH~98.5%,100%RH (humidity generatorshould be purchased separately) Humidity Control Accuracy: ±1%RH Vacuum Resolution: 0.1Pa Vacuum Degree: <20Pa Specimen Size: 097mm No. of Specimens: 3 pieces (independent data respectively) Transmission Area: 38.48cm2 Test Gas: O2, N2 and CO2, etc.(Users provide gas source themselves) Test Pressure: -0.1MPa ~+0.1MPa Pressure of Gas Source: 0.4MPa~0.6MPa Inlet Size: 06mm polyurethane pipe Dimensions: 760mm (L)x575mm (B)x450mm (H) Power: AC 220V 50Hz Net weight: 88kg ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-A, GB 1038,YBB 00082003 Configuration Standard : Mainframe, temperature controller, software, sample cutter, vacuum grease, vacuum pump, filter paper. Optional: blades, vacuum grease, oil for vacuum pump, filter paper ,humidity generator Note: Users provide test gas cylinder and distilled water for themselves. It is betterto use server instead ofthe common computer. O6mm PU pipe is equipped to connect the unit to gas resource Labthink instruments Co., Itd. No. 144 Wuyingshan Road, Jinan 250031, China. www.labthink.cn Tel : 0086 531-85824157 Fax : 0086 531 -85812140

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