Bekk smoothness tester, HK model NO.2041
Smoothness of paper is one of the important factors to evaluate writing and printing aptitudes of paper. With this machine, test is conducted in the following procedure: place a sheet of paper on the well polished surface of glass constituting an optical surface, apply a 0.1 MPa pressure on the top of the paper and measure the time needed for a 10 cc air to penetrate through the gap between the paper surface and the glass surface. To solve the problem of consumption of much time for measurement of specimens with a high smoothness, a rapid measurement system is provided, which is able to measure penetration time of 1 cc air, 1/10 of the standard air volume.
Spesification
Measurement area | 10 +0.05 cm2 |
Specimen pressurization | 100 kPa |
Pressurization type | cam |
Vacuum meter | digital |
Timer | max.99999.9 seconds |
Measurement vacuum | 50.7 to 48.0 kPa |
Measurement air volume | 10 cc or 1 cc, selectable |
Referential standards | JIS P-8119-1998, TAPPI T479om-99, ISO 5627 |
Power source | single-phase 100/110 VAC 50/60 Hz 1A |
Outer dimensions | 420x300x530 mm |
Instrument weight | 24 kg |
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