The N600P Paper & Paperboard Air Permeability Tester is custom-developed to align with standards like GB/T 458-2008 and ISO 5636. It adopts the differential pressure method as its core testing principle, and innovatively integrates three industry-common testing approaches (Gurley, Schopper, and Bendtsen) into a single device.
This tester is applicable to air permeability detection of various paper and paperboard materials, and can measure key indicators including: material air permeability, air resistance, gas transmission rate, and total gas transmission volume.
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Gurley Method
Under a constant differential pressure of 1.23 kPa, measure the time required for 100 mL of gas to pass through the sample.
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Schopper Method
Select a suitable test duration under a constant differential pressure (1.00 kPa±0.01 kPa or 2.50±0.01 kPa), and calculate the gas flow rate through the sample by measuring the gas volume.
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Bendtsen Method
After clamping the sample for 5 seconds under a constant differential pressure of 1.47 kPa, test the gas flow rate through the surface of the sample.
GB/T 458-2008, SJ/T 10171-2016, ISO 5636-5:2003, ISO 5636-2:1984, ISO 5636-3:2013, TAPPI T460
| Item |
Technical Parameters |
| Test Range |
0.1~10 μm/(Pa·s) |
| Resolution |
0.001 μm/(Pa·s) |
| Differential Pressure Range |
0~5 kPa |
| Pressure Resolution |
0.001 kPa |
| Test Area |
6.42 cm² or 10.0 cm² |
| Sample Size |
>50 mm×50 mm |
| Instrument Dimensions (L×W×H) |
450 mm×400 mm×300 mm |
| Power |
100 W |
| Power Supply |
110~250 VAC, 50~60 Hz |