The Combitest test stand is used to carry out leak tests on pipe connections. The test stand consists of a test chamber with sliding doors. The sliding doors are used for protection against water jets when the test sample leaks. The supply unit is set up outside the test chamber. A crossbeam is installed at the top of the chamber to support the installation and removal of the test sample. The crossbeam is used to attach hoisting slings for installing and removing test samples. The test sample is clamped between two bearings. In the pipe connection area, the test sample is mounted on a support that can be adjusted lengthwise and fixed with a trap. On one side, the bearing is mounted on a deflection slide. During the test, the deflection slide is deflected by a value according to the test standards.