Table I^. Abstract of Temperature Corrections to 

 Salinity table 



Sample Temperature °C. 



Salinity %o 16 18 20 22 24 26 



34 +.003 +.002 +.001 .000 -.001 -.002 



35 .000 .000 .000 .000 .000 .000 



36 —.003 -.002 -.001 .000 +.001 +.001 



Table with additional Temperature Corrections to Sa- 

 linity from 12° to 32° C. and 32%o to 39%o salinity 

 is furnished with each salinometer 



6. Computation of Total Corrections %p. — 

 Diltn. column is not used wlien the above rinse 

 procedures are employed. The total corrections 

 %o are computed by algebraically combining the 

 drift and temperature corrections. Enter in the 

 Total Corrections %g column. 



7. Computation of Corrected Salinity %g. — 

 The corrected salinity for each sample is com- 

 puted by algebraically combining the nominal 

 salinity %o and the total corrections %o. The re- 

 sulting salinity value is entered in the Corrected 

 Salinity %g column. 



The Reniarl-s column should be used to record 

 notations such as loose sample bottle cap, dirt 

 in bottle, etc. The chemist should enter his ini- 

 tials and the date of analysis in the appropriate 

 blocks, and all calculations and conversions on 

 the DDD-Sheet should be checked by another 

 person. The DDD-Sheet is filed in the Oceano- 

 graphic Station Folder with the Log Sheet- A. 



J-23 Maintenance of Induction Salinom- 

 eter. — The induction salinometer is relatively 

 simple to maintain, and the only tools and mate- 

 rials necessary are a screwdriver, a small adjust- 

 able wrench, spare parts, lab tissues, silicone 

 lubricants and oils. After a series of salinity 

 samples have been run, rinse the sample cell 

 with fresh water; empty, rinse, and dry the 

 overflow jar; rinse and dry the latex tubing; 

 replace the carrying case cover, and secure the 

 instrument in an upright position. Maintenance, 

 inspections, and repairs should be performed as 

 follows : 



(1) Eoutine Checking. Check to assure that 

 power cable is not frayed or broken, that all com- 

 ponents are securely mounted, that all water con- 

 nections are secure, and that pump and stirrer 

 drive belts are not worn. 



(2) Cleaning. When the cell is obviously 

 dirty, or when large droplets of water cling to 

 cell surfaces, cleaning is required. Refer to 

 paragraph 1-24. 



1-24 Trouble Shooting.— The procedures de- 

 scribed deal with problems experienced by op- 

 erating personnel and are confined to those re- 

 pairs which can be made in the field. Refer to 

 figures 1-15 and 1-16. 



1. Air Bubbles. — Air bubbles in the sample 

 cell are caused by one of three conditions: (a) 

 air leak from the outside, (b) bubble (air) en- 

 trapment from the inside, (<•) or a dirty cell. 

 To determine the cause of air bubbles, 



Figure 1-15. Sample cell assembly. 



Figure 1-16. Pump motor and stirrer motor. 



1-17 



