Introduction: Efficient oxygen permeability tester based on the principle of differential pressure test method is a professional gas permeability tester for film samples for plastic film, composite film, high barrier materials, sheets, metal foil Determination of gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient at various temperatures. VAC-V3 differential pressure method using the test principle, the pre-processed sample placed between the upper and lower test chamber, clamping. First of all, the low-pressure chamber (lower chamber) is vacuum-treated, and then the entire system is evacuated. When the specified vacuum is reached, the lower chamber is closed and a high pressure chamber (upper chamber) is filled with a test gas under a certain pressure A constant pressure difference (adjustable) is formed on both sides of the sample; thus, the gas permeates from the high pressure side to the low pressure side under the effect of the pressure gradient, and the pressure in the low pressure side is monitored and treated to obtain the measured sample The barrier parameters. Features: 1 can simultaneously determine the sample gas permeability, solubility coefficient, and diffusion coefficient 2 The industry's most efficient six-chamber fully independent design allows simultaneous testing of six identical or different specimens 3 The six test cavities are divided into A, B two different precision regions to meet the requirements of different test precision, and the accuracy of B group is as high as 0.01 Pa 4 wide range of high-precision temperature control, to meet the test under various test conditions 5 provides proportional and fuzzy dual test process to determine the mode test range 6 can be expanded as needed to meet the requirements of large penetration test 7 can be any temperature data fitting, easy to get the test results under extreme conditions 8 to support the testing of toxic gases and flammable gas (to be restructuring) 9 system using computer control, the entire test process is completed automatically 10 provides a standard film for rapid calibration, to ensure the accuracy and versatility of the test data 11 with RS232 universal data interface for data transfer Specifications: Test range: 0.1 ~ 50,000 cm3 / m2 • 24h • 0.1MPa (A group of conventional volume) 1.00 ~ 500,000 cm3 / m2 • 24h • 0.1MPa (Group A Expansion Volume) 0.01 ~ 1,000 cm3 / m2 • 24h • 0.1MPa (B group) The number of samples: 6 (A, B two sets of three, the data are independent) Vacuum resolution: Group A: 0.1 Pa, Group B: 0.01 Pa Test chamber vacuum: <20 Pa Temperature range: 5 ℃ ~ 95 ℃ Temperature control accuracy: ± 0.1 ℃ Sample size: Φ97 mm Through area: 38.48 cm2 Test gas: O2, N2, CO2 and other gases (gas source users-owned) Test pressure: -0.1 MPa ~ + 0.1 MPa (conventional) Air pressure: 0.4 MPa ~ 0.6 MPa Interface size: Ф6 mm polyurethane tube Dimensions: 1370 mm (L) × 575 mm (W) × 450 mm (H) Power: AC 220V 50Hz Net weight: 160 kg
Introduction: Efficient oxygen permeability tester based on the principle of differential pressure test method is a professional gas permeability tester for film samples for plastic film, composite film, high barrier materials, sheets, metal foil Determination of gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient at various temperatures. VAC-V3 differential pressure method using the test principle, the pre-processed sample placed between the upper and lower test chamber, clamping. First of all, the low-pressure chamber (lower chamber) is vacuum-treated, and then the entire system is evacuated. When the specified vacuum is reached, the lower chamber is closed and a high pressure chamber (upper chamber) is filled with a test gas under a certain pressure A constant pressure difference (adjustable) is formed on both sides of the sample; thus, the gas permeates from the high pressure side to the low pressure side under the effect of the pressure gradient, and the pressure in the low pressure side is monitored and treated to obtain the measured sample The barrier parameters.
