LR-F059 Gas Permeability Tester
Use
It is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting and aluminum foils.
LR-F059 Gas Permeability Tester
Character
? Gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of the specimen could be obtained at one operation
? 3 distinct or equivalent specimens could be tested individually with independent test results at one operation
? Wide range and high precision temperature and humidity control to meet various test conditions
? The instrument comes with two test modes: proportional mode and Fuzzy Model.
? Test range could be extended based on user requirements to test the materials with high permeability
? Test results could be easily obtained even at extreme conditions by data fitting function, which could work at any temperature
?The instrument could be used to test poisonous, inflammable, and explosive gases (customization required)
? The instrument is controlled by computer and test process is automatic
? Reference film for fast calibration to ensure accurate and universal test data
– Standard RS232 port for convenient data transfer
Principle
The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure 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 and a constant pressure difference is generated between two chambers. The gas permeates through the specimen from the higher pressure side into the lower side. The gas permeability and other barrier properties of the specimen can be obtained by monitoring the pressure changes in the lower chamber.
Standards
ISO 15105-1、ISO 2556、GB/T 1038-2000、ASTM D1434、JIS K7126-1、YBB
LR-F059 Gas Permeability Tester
Applications Specifications
| Basic Applications | Films | Including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films and many others |
| Sheeting | Including engineering plastics, rubber and building materials, e.g. PP, PVC, and PVDC |
| Extended Applications | Various Gases | Test the permeability of various types of gases, e.g. O2, CO2, N2, Air and He |
| Inflammable, Explosive Gases | Test the permeability of inflammable and explosive gases | |
| Biodegradable Films | Test gas permeability of various sorts of biodegradable films, e.g. starch-based biodegradable bags
| |
| Materials for Aerospace Usage | This instrument can test the Helium permeability of airship gas bags | |
| Paper and Paper Board | Test gas permeability of paper and paper-plastic composite materials, e.g. aluminized paper for cigarette packages, Tetra Pak sheeting, paper bowls for instant noodles and disposable paper cups | |
| Paint Films | Test gas permeability of substrates coated paint films | |
| Glass Fiber Cloth and Paper | Including glass fiber cloth and paper materials, e.g. Teflon paint cloth, Teflon welding cloth and Teflon silicon rubber cloth | |
| Soft Tube Materials for Cosmetics | Including various types of cosmetic tubes, aluminum-plastic tubes and toothpaste tubes | |
| Rubber Sheeting | Including various sorts of rubber sheeting, e.g. car tires |
Technical Specifications
| Specification | LR-F059 |
| Test Range | 0.05 ~ 50,000cm3 /m2·24h·0.1MPa (standard volume) |
| At least 500,000 cm3 /m2·24h·0.1MPa (extended volume) | |
| Number of Specimens | 3 (with independent test results) |
| Vacuum Resolution | 0.1 Pa |
| Vacuum Degree of Test Chamber | ＜20 Pa |
| Temperature Range | 5℃～95℃ |
| Temperature Accuracy | ±0.1℃ |
| Humidity Range | 0%RH, 2%RH ~ 98.5%RH, 99%RH (humidity generator is optional) |
| Humidity Accuracy | ±1%RH |
| Specimen Size | Φ97 mm |
| Test Gas | O2, N2, and CO2 (outside of supply scope) |
| Test Pressure | -0.1 MPa ~ +0.1 MPa (standard) |
| Gas Supply Pressure | 0.4 MPa～0.6 MPa |
| Port Size | Ф6 mm PU Tubing |
| Instrument Dimension | 760 mm (L) × 575 mm (W) × 450 mm (H) |
| Power Supply | AC 220V 50Hz |
| Net Weight | 88 kg |
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