The effect of pressure on the electrical conductivity of sea water

This report describes measurements made in the laboratories of Arthur D. Little, Inc., of the effect of pressure on the electrical conductivity of sea water of different salinities (and chlorinities) and at various temperatures. The first part of this report describes the design, construction, and calibration of the equipment, while the experimental data and the conclusions are presented in the second part. Over the range 0 to 25C, 15 to 10,000 Ib/ in.~, and 9.68 to 19.38 9/00 chlorinity the specific conductance at pressure P (in lb/ in.) can be approximated from the value at one atmosphere, Kj T, Cl using the simple empirical relation ~ -8 Kp. T,Cl iy Ki rc oF oi ox 10 Ci P where Cl is the chlorinity in parts per thousand. If P is expressed in bars this relation becomes -7