System for checking the functionality of a pressure relief valve

A system comprising a cryogenic container for storing cryogenic fluid and a connection system having a connection line connected to the cryogenic container and ending in a pressure relief valve, wherein there is provided a check valve within the connection line, which is configured to prevent a flow of fluid in the direction of the cryogenic container, and the system further comprises a test line, which connects to the connection line between the check valve and the pressure relief valve and ends in a test connection for a test device for providing a pressurized test fluid, wherein there is provided a valve within the test line, which is configured to prevent a flow of fluid in the direction of the test connection and to enable a flow of fluid in the direction of the pressure relief valve in order to check the functionality thereof, wherein the valve is a check valve or a pinch valve.