Presto Digital Bursting Strength Tester is utilized for measuring the bursting strength of paper/strong paper-board by submitting it to an increasing uniform hydraulic pressure. The procedure involves preparing the specimen for test and mounting the sample between two circular clamps. The specimen is then, tightened with the help of geared handle provided. The increasing pressure (hydraulic) is then applied by the handle (moving up and down) on the left side of the tester. The diaphragm is expanded till the specimen ruptures. The pressure reading is the Bursting strength of the given fabric in kg/cm².