Descripción
The RL-BRAPT-A is used for measuring the air permeability and surface roughness according to Bendtsen method.
To evaluate surface roughness with this machine, the operator places the sample below the measuring head. By pushing the start button, the measuring head lowers onto thesample and gently clamps it. The test starts. As soon as the preset flow rate (e.g.1,47 ml/min) is stable, the measuring value is displayed. The test time is adjustable from 1-40 seconds. After test performance, the sample is released. The measuring head returns to its initial position and the device is ready for further measurements.
When used for air permeability the operator places the sample below the measuring head. By pushing the start button, the measuring head lowers onto the sample and gently clamps it. Air flows through the sample at a selected pressure (e.g.1,47 KPa). As soon as the preset flow rate is stable, the measuring value is displayed. The test time is adjustable from 1-40 seconds. Gurley values are calculated according to the standard and are displayed in Gurley seconds by default.
Machine Configuration Options
Bendtsen Roughness:
1 x Roughness measuring head
Bendtsen/Gurley Porosity:
1 x Porosity measuring head
Bendtsen Roughness-Porosity:
1 x Roughness measuring head and
1 x Porosity measuring head
Applicable Standards: ISO 8791-1, ISO 8791-2, ISO 5636-1, ISO 5636-3, SCAN P21, SCAN P84, IS 9894, DIN53108, BS 4420