Test apparatus and method for inspecting an opening provided for a cryogenic application gasket

In order to improve a test apparatus for testing an opening provided for a cryogenic application seal so that a reliable and economical testing of the seal is provided, it is proposed that the test device a receiving device, which has to receive a seal to be tested, a receiving space, one with the receiving space includes standing in fluid connection supplying means for supplying the receiving chamber with a test fluid and a cooling device for cooling the receiving device.