Abstract: The object of the invention is a container cover (5) to close a filling opening (4) in a transport and/or storage container, in particular a temporary and/or permanent storage container for contaminated and/or activated substances, with at least two grooves (9) on the inside of the container cover (5) that are arranged at an interval to one another, with at least two gaskets (8) each arranged in a groove (9), and with a bypass device (18) to circulate (19) a gas, the bypass device (18) being connected with at least one groove (9) in such a way that an undefined gas volume (17) confined by the gasket (8) and the groove (9) can escape through the bypass device (18).

Abstract: Large quantities of explosive hydrogen-oxygen mixtures can be produced by leaks or accidents in technical plants, e.g. nuclear reactors. The invention relates to a catalyst, a catalyst system, an arrangement for recombining hydrogen with oxygen, and a method for producing a catalyst. The inventive catalyst is characterized in that the ignition point of the mixture is exceeded under no circumstances even though the catalyst works in a strictly passive manner without outside intervention and the recombination is an exothermal reaction. The basic idea is to design the catalyst such that the catalyst autonomously limits the activity thereof in accordance with the prevailing temperature.

Abstract: Large quantities of explosive hydrogen-oxygen mixtures can be produced by leaks or accidents in technical plants, e.g. nuclear reactors. The invention relates to a catalyst, a catalyst system, an arrangement for recombining hydrogen with oxygen, and a method for producing a catalyst. The inventive catalyst is characterized in that the ignition point of the mixture is exceeded under no circumstances even though the catalyst works in a strictly passive manner without outside intervention and the recombination is an exothermal reaction. The basic idea is to design the catalyst such that the catalyst autonomously limits the activity thereof in accordance with the prevailing temperature.