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Abrasion Tester.
Abrasion Tester - The resistance to Abrasion Tester of sole leather may be
determined with the help of a drum type abrader (similar to NBS
abrader). In this test, an abrasive cloth strip of a specified grit is
fixed over the circumference of a drum, which is rotated at a specified
speed. The test specimen, in shape of a rectangular strip, is held on a
metallic bar located above the drum such that its longer axis is
perpendicular to the axis of the drum. When the metallic bar is pressed
against the drum, the test specimen gets abraded. The number of
revolutions needed to produce a depth of abrasion of 2. 5 mm is
determined and compared against that needed to produce a depth of
abrasion of 2. 5 mm in a standard rubber compound to obtain the abrasive
index of the leather sample under test.
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