In recycling centres, communities, the floor weighing systems are the conditions for the economical management of waste. All different clients requires a more indivdual form of billing, which, at the same time, needs to be technically, ecologically and economically supportable for the provider. The weight of the container is calculated both before and after emptying. Important customer and material information can be entered in the weighing terminal. As a result, the invoice can be printed out on a local printer. Identification is via a User-card or transponder.