Description and Specification for Lab Tenders
Water Proofness Tester Machines.
Water Proofness of leather used for manufacture of gloves is determined by placing a test specimen taken from the sample of leather under test on a wetted surface of a metal anvil. The upper surface of the test specimen is tapped intermittently by a hammer, which falls on it. The number of taps required to produce penetration of water through the test specimen is found to determine its water proofness. Also, the increase in weight of the test specimen is found to determine the mass of water it absorbs during this operation.