VIP121 Paper Air Permeability is applied to testing the moderate air permeability of paper.
Under the specified conditions, the average air flow of paper in unit area, within unit time and under unit pressure.
Applying in testing air permeability of different kinds of paper (not contain the rough surface paper), such as cement bag paper, sack kraft paper, cable paper, copy paper, filter paper and so on.
ISO1924/2-1985 <Paper and board – Determination of tensile properties – Part 2: Constant rate of elongation method (20mm/min)>
QB/T1667-98 < Paper and board – Tester of air permeance >
GB/T458-1989 <Paper and board – Determination of air permeance – Schopper method >
Mainframe, one operating manual