284 



TABLE 272.- 



-COMPRESSIBILITY AND THERMAL EXPANSION OF 

 PETROLEUM OILS 92 



It was found that the compressibility and thermal expansion of two samples of the same 

 specific gravity, but from different sources, differed more than 30 percent at the higher 

 temperatures, whereas oils of the same specific gravity and the same viscosity had the same 

 compressibility and thermal expansion within rather narrow limits. In other words, with a 

 knowledge of the specific gravity and viscosity of the oils, it was possible to represent all 

 the measured volumes within less than .5 percent over the entire range of temperature 

 and pressure covered by the measurements. 



e2 Jessup, R. S., Nat. Bur. Standards Journ. Res., vol. 5, p. 985, 1930. 

 SMITHSONIAN PHYSICAL TABLES 



