Elmendorf Type Tear Resistance Tester: It is used for measuring the resistance against tearing of paper, board, plastic films and other similar materials. An initial cut is made in a set of test piece,which are then torn through a given distance.The work done in the test piece is measured as the loss in potential energy of a pendulum which i free to swing on it horizontal axis.A calibrated scale indicates the mean tearing force.
As Per TAPPIT:
TAPPIT-414, SCAN P-11, BS 4468, DN 53128. ASTM D 689
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