100 SWEETENED CONDENSED MILK STRIKING 



Correction of Hydrometer Reading for Temperature. The 

 Beaume hydrometers used in American condenseries are grad- 

 uated to give correct readings at 60 degrees F. If the readings 

 are to be correct, or if it is desirable to convert them into spe- 

 cific gravity, the condensed milk should have a temperature of 

 60 degrees F. Where this is not convenient, the observation may 

 be made at any temperature convenient and the reading corrected 

 as follows : 



When the temperature is above 60 degrees F. multiply the 

 difference between the observed temperature and 60 degrees F. 

 by the factor .025 and add the product to the observed reading of 

 the Beaume hydrometer. When the temperature of the observed 

 reading is below 60 degrees F. the corresponding product is 

 deducted. 



Examjple : Beaume reading at 120 degrees F. is 31.2. Cor- 

 rected reading is 31.2 + [.025 X (120 60)] == 32.7. 



The specific gravity may be calculated when the Beaume 

 reading is known, by using the following formula : 



144 3 

 Specific gravity ^AAI P~ > B - Beaume reading. 



H-T-.O -D. 



Example: Beaume reading, at 60 degrees F. is 33.1. 



144 3 

 Specific grvity ; : 1443 _ 33J 



In the following table are assembled figures showing the spe- 

 cific gravity of sweetened condensed milk of different Beaume 

 degrees, varying from 28 degrees B. to 37.8 degrees B. 



