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Application
To test the air permeability of the paper and cardboard.
Operating principle
Gurley Method：To measure the time taken to pass 100 ml of gas at a constant pressure difference of 1.23 kpa.
Schopper-Riegler Method： Select the appropriate test duration and determine the air flow rate through the sample by measuring the volume under the constant pressure difference of 1.00kPa ± 0.01kPa or 2.50 ± 0.01kPa
Bendtsen method：At a constant pressure difference of 1.47kPa, the air flow through the test surface was recorded after clamping for 5s.
Standards
ISO 5636-5：2003, ISO 5636-2：1984, ISO 5636-3：2013, TAPPI T460, GB/T 458-2008, SJ/T 10171-2016
Specifications
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Test Range |
0.1~10 μm/(Pa.s) |
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Resolution |
0.001 μm/(Pa.s) |
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Pressure difference range |
0~3 kPa |
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Pressure resolution |
0.001kPa |
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Test area |
6.42cm2 or 10.0cm2 |
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Sample size |
＞50 mm×50 mm |
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Instrument size |
L×W×H: 450 mm×400 mm×300 mm |
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Power |
100 W |
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Power supply |
110~250 VAC, 50~60 Hz |
Integrate Gurley's method, Schober's method, and Bengtsen's method into one machine for users to choose freely to meet the testing needs of different users;
The pressure difference of the instrument is adjustable in the range of 0~3 kPa, with an accuracy of 0.001 kPa, fully meeting the test pressure difference requirements of the three methods;
The test area can be freely converted between 10.0 cm2 and 6.42 cm2 by changing the fixture;
The sealing of the instrument is good, and the air leakage does not exceed 1.0 mL/h;
The host is equipped with a color touch screen, no external computer is needed, and the air permeability of the sample can be observed in real time;
Built-in micro printer, which can print test reports in real time.
Application
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Insulating paper |
Measurement of air permeability of transformer insulation cardboard, green shell paper, cable paper, etc. |
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Wrapping paper |
Determination of air permeability of kraft paper, paper bag paper, food packaging paper, moisture-proof paper, paraffin paper, etc. |
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Fiber paper |
Determination of air permeability of wound paper, impregnated paper, laminate, capacitor paper, high temperature fiber paper, etc. |
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Filter paper |
Air permeability measurement of industrial filter cloth (filter paper), qualitative filter paper, quantitative filter paper, etc. |
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Other |
Alkaline battery separators (nylon felt, non-woven fabrics, tissue paper and other microporous membranes) and other materials. |
