Method and device for supplying dialysis liquid to a dialysis apparatus

The invention relates to a method and a device for supplying dialysis liquid to a dialysis apparatus, and to a dialysis apparatus with a device for supplying the dialysis apparatus with dialysis liquid. For the production of dialysis liquid, a container 13 is provided which is filled with a powdered dialysis liquid concentrate K, wherein the quantity of the dialysis liquid concentrate contained in the container is such that the dialysis liquid concentrate permits the production of a quantity of dialysis liquid that is sufficient for a predefined number of dialysis treatments. The method according to the invention and the device according to the invention permit a comparison of the concentrate quantity K2 present in the container 13 and the planned usage quantity, which derives from the prescription by the physician and from the treatment parameters set on the machine. After the individual dialysis treatments have been performed, an ongoing check is made to ascertain whether the concentrate quantity is suffici