The present invention provides an improved method for manufacturing high quality porous crystalline MCM-56 material. The spring member may substantially enclose andor be pivotally engaged with the body portion. The concentrate discharge system includes a plurality of concentrate discharge ports. The RDC authenticates the PDK based on received data and stores information to track customers and provide improved service. The oxygen-carrying component may consist of any hemoglobin-based oxygen carrier, while the non-oxygen carrying plasma expander my consist of any suitable diluent.