Table 94.. 

 SPECIFIC GRAVITIES CORRESPONDING TO THE BAUNIE SCALE. 



109 



The specific gravities are tor I5.56°C (6o°F) referred to water at li.e same temperature as unity 

 For specific gravities less than unity the values are calculated from the formula : 



Degrees Baume = 



140 



For specific gravities greater than unity from: 



Degrees Baume = 145 



Specific Gravity 

 145 



-130. 



Specific Gravity 



TABLE 94 (a). Degrees A. F. I. Corresponding to Specific Gravities at 60'V60° F. 



(15.56°/ 15.56° C) for petroleum oils. 



In order to avoid confusion and misunderstanding the American Petroleum Institute, the 

 Bureau of Mines, and the Bureau of Standards have agreed that a scale based on the modulus 

 141. 5 shall be used in the United States Petroleum Industry and shall be knovi^n as the A. P. I. 

 scale. The United States Baume scale based on the modulus 140 will continue to be used for other 

 liquids lighter than water. 



141.5 



Sp. Gr. 6o°/6o° F ^^^"^ 



Calculated from the formula, degrees A. P. I. = 



Smithsonian Tables. 



