For measuring the bursting strength on materials such as paper, compact and corrugated cardboard "Mullen type”. Bursting Strength Tester, to test the bursting strength of paper, compact and corrugated cardboard by the of hydraulic load under a Burst Tester diaphragm of a specific area. After placing the paper or cardboard sample in its test position, under the acrylic protective screen, the TEST button is activated on the screen of the supplied PC. The methacrylate protective screen descends and then the pneumatic piston, closing the specimen holder. Next, the hydraulic pressure device acts on the sample. When the sample bursts, the hydraulic cylinder stops automatically and reverses the direction of travel until it returns to its initial test position.