Merck 101254 Potassium Chloride Solution (Nominal 12.8 Ms/Cm) Certified Reference Material For The Measurement Of Electrolytic ConductivitMerck 101254 Potassium Chloride Solution (Nominal 12.8 Ms/Cm) Certified Reference Material For The Measurement Of Electrolytic Conductivit, Merck101254.0500