I. SUMMARY 



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 tempera- 

 tures . 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 to 25°C, 15 to 10, 000 lb/ 

 in.^j, and 9.68 to 19o38 o/oo chlorinity the specific conductance at pressure P 

 (in lb/in. 2) can be approximated from the value at one atmosphere, K^^t, CI 

 using the simple empirical relation 



Vt.CI =Ki_T,ci+1.17xlO-«ClP 



where CI is the chlorinity in parts per thousand. If P is expressed in bars this 

 relation becomes - 



K„ _ _, = K, ^ ^, + 1 .70 X lO"^ CI P 

 P,T,C1 1,T, CI 



artbur Sl.ltttkKinr. 



S- 700 1-0307 



