Water Vapor Permeation Tester
|Speed Rotation of Whee||75 RPM|
|Distance Between Axis of Rotation & Axis of Bottles||67 mm|
|Inner Diameter of Bottles||30 mm|
|Speed of Rotation Fan||1425 RPM|
|Maximum Number of bottles That Can Be Mounted at a Time||6|
It is evaluated by clamping a circular test specimen over the mouth of a bottle containing a solid desiccant and subjecting it to a rapid current of air. The air inside the bottle is circulated by keeping the desiccant in motion. The increase in weight of the bottle in a specified interval of time gives the quantitative measure of the water vapour permeability of the leather sample under test.