| abstract |
The invention relates to a test set ( 1 ) for a photometric measuring device, comprising a mixing container ( 2 ) which has a filling opening ( 3 ) and comprising a metering container ( 8 ) which can be sealingly inserted into the filling opening ( 3 ) of the mixing container ( 2 ) and which contains a liquid reagent ( 13 ) in a closed cavity ( 9 ). The cavity ( 9 ) has a closure plunger ( 11 ), which can be moved axially in the cavity ( 9 ), at a first end of the metering container ( 8 ), said closure plunger generating a specifiable filling pressure in the reagent ( 13 ), and the metering container ( 8 ) has a closure membrane ( 10 ) at a second metering container and which can be inserted into the mixing container ( 2 ). According to the invention, the closure membrane ( 10 ) is equipped with a predetermined breaking point ( 20 ) which breaks open when the filling pressure is exceeded in a defined manner as a result of an axial movement of the closure plunger ( 11 ), said predetermined breaking point ( 20 ) of the closure membrane ( 10 ) being formed as a linearly extending material taper of the closure membrane ( 10 ), wherein the taper is arranged eccentrically in the region of an opening ( 24 ) in the base ( 23 ) of the substantially cylindrical metering container ( 8 ). |