Abstract: A method for mounting photovoltaic solar modules (2), in particular thin-layer solar modules, on a surface area (4) is characterized in that in a first method step a first plastic sheet (6) is applied on the upper side (5) of the surface area (4), then a first layer (8) of gravel (8a) is arranged on the plastic sheet (6), and then the solar modules (2) on the plastic sheet (6) are placed on the first layer (8) of gravel (8a). Furthermore, the invention relates to an arrangement (1) for mounting solar modules (2) on a substantially level surface area (4).

Abstract: A particle filter for an internal combustion engine, in particular a soot particle filter, can be tested. The filter is subjected at the inlet side to a hot gas flow which is laden with particles. The particles are supplied to the hot gas flow from a particle storage container by means of a dosing device. The quantity of particles which is introduced into the hot gas flow during a predefined measurement time period is determined by weighing the particle storage container. There is also provided a configuration for carrying out the method.

Abstract: A particle filter for an internal combustion engine, in particular a soot particle filter, can be tested. The filter is subjected at the inlet side to a hot gas flow which is laden with particles. The particles are supplied to the hot gas flow from a particle storage container by means of a dosing device. The quantity of particles which is introduced into the hot gas flow during a predefined measurement time period is determined by weighing the particle storage container. There is also provided a configuration for carrying out the method.