Manometric method Gas Permeability is applicable in the gas transmission rate test of the film & sheets under the circumstance condition.
- Characteristics
- Manometric principle, complies with ISO, ASTM and GB standards.
- Semi-automatic, economy.
- High precise, data is notarized by the third party, impersonal.
- Stable and believable performance, good repeatability.
- Giving average data of the three chambers, high efficiency.
- Tow testing modes of proportion and non-proportion.
- Computer inspect and control, test result can be displayed by figure.
- Friendly human-equipment interaction.
- Calibrated by reference film, easy and reliable.
- Principle
- Put the sample pre-conditioned between the upper and lower chambers, clamp tightly, open the valve of the lower chamber to vacuum the lower chamber, and then vacuum the whole system. When the vacuum degree reaches the certain data, close the valve of the lower chamber. Feed certain pressure of testing gas into the upper chamber to generate a constant pressure difference between the two chambers (adjustable). The gas will penetrate the film from the higher pressure side to the lower pressure side under the function of the pressure gradation. Get the gas transmission rate through inspecting and processing the pressure of the lower chamber.
- Technical data
- Test Range: 0.1~100,000cm3/m2·24h·0.1MPa (normal)
- Test Temperature: Room temperature
- Resolution of the vacuum: 0.1Pa
- Vacuum degree: <26Pa
- Testing gas: O2, N2, CO2 and so on
- Pressure of gas resource: 0.4MPa=P=0.6MPa
- Sample size: ö80mm
- No. of the sample: 3
- Size: 670mm(L)×490mm(B)×350mm(H)
- Power: AC220V 50Hz
- Weight: 57kg
- Standard
- GB 1038¡¢ASTM D1434¡¢ISO 2556
- Recommended application
Companies who have strictly criteria to the production technique and the technical data.
- Standard configuration
- Mainframe, software, sampling cutter, vacuum pump, vacuum grease, filter paper
- Note: Testing gas is supplied by uses themselves.
