Grade . 

 Date. . 



(22) 



EXERCISE 5. 



Object. — To test whole milk for fat content by Babcock method. 



Repeat Exercise 4. Test as many samples of milk as possible during the 

 laboratory period. 



Report. 



1. Try to account for any difference in tests between samples "A" and 

 "B" in each case. 



2. What would be the pounds of butterfat given by a cow giving 8000 

 pounds of milk per year with the fat test of your first sample? 



3. What would be its total value at 38 cents a pound? 



4. Why is 17.6 cc. of milk used for the test? 



5. Why are the bottles set in water at 130° F. before reading? 



