The gas permeability tester GPT-103 is based on the differential pressure method, and is professionally used to determine the gas transmission rate (GTR) and permeability of plastic films, composite films, high barrier materials, sheeting and metal foils at different temperatures.
Principle:
The pre-conditioned specimen is mounted in the gas diffusion cell to form a sealed barrier between two chambers. The lower-pressure chamber is first evacuated, followed by the evacuation of the entire cell. Gas is then introduced into the evacuated higher-pressure chamber, creating a constant pressure difference between the two chambers. The gas permeates through the specimen from the higher-pressure side to the lower-pressure side. By monitoring the pressure changes in the lower chamber, the gas permeability and other barrier properties of the specimen can be determined.
Gas Permeability Tester Features:
7-inch color touchscreen match with Windows 10 operating system.
Gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of the sample can be obtained in one operation.
High-precision pressure sensors ensure high accuracy and repeatability of the measurement system.
With three test modes: proportional mode, time mode, and intelligent judgment mode.
The three independent test chambers can simultaneously test three identical or different samples under the same or different conditions, with the test data from each chamber being entirely independent.
Once a test is complete in one chamber, the sample can be changed without affecting the other chambers.
The test range can be extended to meet the requirements of high transmittance testing.
Pneumatic specimen grips prevent specimen slippage and ensure accuracy of test data.
Euipped with intelligent operating software, with features of a user-friendly interface, intelligent data processing, strict user management, secure data storage, electronic signature, etc.
Standard with micro-printer and standard USB interface.
The high-precision temperature control system can precisely regulate temperature within the range of 5°C to 95°C, with an accuracy of up to ±0.1°C.
A reference film for fast calibration ensures accurate and universal test data (optional).
Gas Permeability Tester Specifications:
| Model | GPT-103 |
|---|
| Test Range | 0.01 ~ 50,000 cm3/m2·24h·0.1MPa (Standard volume); |
| At least 60,000 cm3/m2·24h·0.1MPa (Optional, Expanded volume) |
| Number of Specimen | 1 ~ 3 (Independent testing results) |
| Vacuum Resolution | 0.05 Pa |
| Vacuum Degree of Test Chamber | <10 Pa |
| Temperature Range | 5°C ~ 95°C |
| Temperature Accuracy | ±0.1°C |
| Sample Size | Φ95 mm |
| Sample Thickness | ≤ 3 mm (Customization is available) |
| Test Area | 33.18 c㎡ |
| Test Gas | O2, N2, CO2, etc. (Customers will need to prepare gas supply) |
| Test Pressure | 0.1 MPa ~ 0.26 MPa |
| Gas Supply Port Size | Φ6 mm PU Tubing |
| Power Supply | 220VAC, 50Hz / 120VAC, 60Hz |
| Consumption | 1000W |
| Standard Configuration | Instrument, tablet, temperature control device, professional software, communication cable, sample cutter, vacuum grease, vacuum pump, fast quantitative filter paper |
| Optional Configuration | Reference film, vacuum pump oil, humidity control device |
| External Size (WxDxH)(mm) | Instrument: 700x530x450; Vacuum pump: 520x160x270; Cryostat: 320x400x680 |
| Net Weight | Instrument:70kg; Vacuum pump:28kg; Cryostat:20kg |
| Package Size (WxDxH)(mm) | Instrument:850x680x650; Vacuum pump:670x310x470; Cryostat:470x550x880 |
| Gross Weight | Instrument:80kg; Vacuum pump:33kg; Cryostat:25kg |
Test Standards:
This Gas Permeability Tester conforms to many national and international standards: ISO 15105-1, ISO 2556, ASTM D1434, JIS K7126-1, GB/T 1038-2000, YBB00082003
Application of Gas Permeability Tester:
| Basic Applications | Films | Including 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. |
| Sheeting | Including PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheet materials. |
| Gas | Oxygen, carbon dioxide, nitrogen, air, helium |
| Optional Applications | Hazardous Gases | Test the permeability of inflammable and explosive gases, such as CH4, H2, etc. |
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