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A vessel storing a batch of chemicals for delivery into a dialysate preparation tank includes a machine readable indicator, permitting automatic identification of the contents of the vessel prior to operating the vessel and introduction of chemicals into a tank where the dialysate solution is mixed.

A vessel storing a batch of chemicals for delivery into a dialysate preparation tank includes a machine readable indicator, permitting automatic identification of the contents of the vessel prior to operating the vessel and introduction of chemicals into a tank where the dialysate solution is mixed. Various types of machine-readable indicators may be used, such as, for example, “touch”memory buttons, bar codes, or magnetic strips. Suitable reading devices for the machine-readable indicators are provided for reading the contents of the bottle.

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Apparatus, for use with a dialysis machine having a dialysate preparation module and a tank for storing a dialysate solution, for performing automatic verification of dialysate chemicals prior to adding said chemicals to said dialysate preparation module so as to insure correct preparation of said d

Apparatus, for use with a dialysis machine having a dialysate preparation module and a tank for storing a dialysate solution, for performing automatic verification of dialysate chemicals prior to adding said chemicals to said dialysate preparation module so as to insure correct preparation of said dialysate solution, comprising: an electronic reader of a machine-readable indicator, said electronic reader incorporated into said dialysis machine; a bottle containing a unit batch of dialysate chemicals for treatment of a medical condition of a patient to be treated by said dialysis machine, said bottle adapted to be installed on an opening apparatus in said machine such that, when said bottle is opened, said dialysate chemicals are placed in fluid communication with said tank for delivery of said unit batch of dialysate chemicals automatically into said tank; and a machine-readable indicator containing coded information as to said dialysate chemicals contained in said bottle, said machine-readable indicator applied to said bottle in a manner for permitting machine identification of the contents of said bottle by said electronic reader prior to operating the opening apparatus to open said bottle and adding said dialysate chemicals to said tank, whereby machine identification of said dialysate chemicals contained in said bottle may occur prior to introduction of said chemicals into said tank.