CONDENSED MILK STRIKING 91 



or if it is desirable to convert them into specific gravity, the con- 

 densed milk should have a temperature of 60 degrees F. Where 

 this is not convenient, the observation may be made at any tem- 

 perature convenient and the reading corrected as follows : 



When the temperature is above 60 degrees F. multiply the dif- 

 ference 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 read- 

 ing is below 60 degrees F. the corresponding product is deducted. 



Example: 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 read- 

 ing is known, by using the following formula : 



144 3 

 Specific gravity = J^ ; B. = Beaume reading 



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



144 -* 

 Specific gravity = m 3 _ 33 t = 1.2976 



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. 



