dispositivo e método de adicionar concentrado a um solvente

摘要

A precision metering device is in provided that includes a device having a first chamber and a second chamber, a piston disposed in the first chamber that divides the first chamber into a mixing portion and a driving portion and a second piston disposed in a second chamber that defines a concentrate portion in the second chamber. The concentrate portion of the second chamber is in fluid communication with the mixing portion of the first chamber. Methods of adding concentrate to a solvent are provided that utilize the provided metering device.