100 SWEETENED CoNDENSED MitK—STRIKING 
Correction of Hydrometer Reading for Temperature.—The 
Beaumé 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 Beaumé hydrometer. When the temperature of the observed 
reading is below 60 degrees F. the corresponding product is 
deducted. 
Example: Beaumé reading at 120 degrees F. is 31.2. Cor- 
rected reading is 31.2 + [.025 « (120—60)] = 32.7. 
The specific gravity may be calctlated when the Beaumé 
reading is known, by using the following formula: 
SP AOA SRL Stee 144.3 : _ : Pd 
Specific gravity = a B. = Beaumé reading. 
Example: Beaumé reading, at 60 degrees F. is 33.1. 
‘3 144.3 
Speci rvity = —— ~—,— = _ 1.2976 
pecific ervity 144.3 33.1 1.2976 
In the following table are assembled figures showing the spe- 
cific gravity of sweetened condensed milk of different Beaumé 
degrees, varying from 28 degrees B. to 37.8 degrees B. 
