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Place the tear strength tester on a rigid horizontal table, set the zero point. Next, check the calibrated weights
Place the tear strength tester on a rigid horizontal table, set the zero point. Next, check the calibrated weights. Raise the pendulum sector on the starting position. Secure it by the pendulum sector release mechanism and set the pointer against its stop. Clamp a specimen securely in the clamps, so that it is centered with the bottom edge, set against the stop and the upper edge parallel to the top of the clamps; close the clamps by tightening the setting screws.