Grade 

 Date ■ 



EXERCISE 11. 



(29) 



Object. — To determine the total solids and the solids not fat in milk. 

 Apparatus. — Babcock test outfit; lactometer and equipment; a sample of 



whole milk. 

 Step 1. Regulate temperature of whole milk sample until near 60° F. Pour 



into cylinder and carefully take lactometer reading. 

 Step 2. Make a Babcock test for fat. Record all data, and by rules 6, A and 



B figure out the total solids and solids not fat for the sample. Repeat 



for a second sample. 



Report. 



1. What would be the total solids in a sample having a lactometer 

 reading of 32.6 at 68° F. and a fat test of 3.8 per cent? 



2. How many pounds of solids not fat in 400 pounds of this milk? 



