Tables 469 and 470 



403 



TABLE 469. — Thermal Electromotive Force of Metals and Alloys versus Platinum 



(millivolts) 



One junction is supposed to be at o°C; + indicates that the current flows from the o° junction 

 into the platinum. The rhodium and iridium were rolled, the other metals drawn.* 



* Holborn and Day. 



TABLE 470. — Thermal Electromotive Force of Platinum-Rhodium Alloys 



versus Platinum 



Temperature versus Electromotive Force in Millivolts 



* Bur. Standards Journ. Res., 3, 1029, 1929. 

 Smithsonian Tables 



