(1000 μS as KCL) (770 μS as 442 or 527 ppm as TDS)
MCI’s popular Pouches (see size "P") allow the user to have a fresh, pre-measured amount of standardized conductivity solution available each time a meter is calibrated. Each pouch contains 20 mls of standardized conductivity standard sufficient for one calibration. Pouches are supplied 20 units per box with each pouch individually sealed against ingress of light or air. Therefore, when a meter is calibrated using an MCI Conductivity Standard pouch, you readjust the meter to maximize testing accuracy.