24 A DAIRY LABORATORY GUIDE 



EXERCISE IV 



BABCOCK TEST AND BUTTER MOISTURE 

 TEST 



1. Prepare a sample of butter for the moisture test 



and test by the C. U. method. 



2. Test a sample of milk in the ordinary way. 

 Retest the same sample in duplicate, using only 



9 grams of the sample. (It must be weighed 

 out.) Make the sample up to i8 grams by 

 adding water. Add the usual amount of 

 acid. 



3. Test a sample of cream in the ordinary way. 

 Retest the cream in the whole milk bottle, divid- 

 ing 18 grams between four bottles (4^2 

 grams by weight in each bottle). 



In each case add enough water to bring the 

 sample up to 18 grams and then add the 

 proper amount of acid as indicated by the 

 appearance of the sample. Add the acid 

 slowly, a little at a time, and shake thor- 

 oughly. 



