THE POSSIBILITY OF EMPLOYING A CALCULABLE 4-ELECTRODE CONDUCTANCE CELL TO SUBSTITUTE FOR THE SECONDARY STANDARDS OF ELECTROLYTIC CONDUCTIVITY

It appears that a four-electrode conductance cell designed and used ac cording to the van der Pauw method can be applied for the absolute det ermination of the electrolytic conductivity of solutions Kith an accur acy comparable with that of the secondary standards for this quantity. Therefore there may be a possibility of avoiding the use of those sta ndards in some cases. The results of the experimental investigation of a prototype model of the cell of this type, carried out by the author s, are consistent with the theoretical considerations and computer mod eling. An absolute determination of electrolytic conductivity has been made for 0.01 and 0.1 M KCl solutions, with an overall uncertainty lo wer than 0.4%.