Grade 



Date. 



EXERCISE 8. 



(25) 



Object. — To determine the percentage of fat in skimmilk 



and whey. 

 Apparatus. — Samples of each, skimmilk and whey; skimmilk 



bottles; pipette; acid measure; mixing beakers; acid; hot 



water bath. 

 Step 1. Measure out 17.6 cc. first of skimmilk in each of two 



skimmilk bottles. 



Proceed as for whole milk test except use a little in excess 



of 17.5 cc. of acid. 

 Step 2. Repeat test in the same manner using whey instead 



of skimmilk. 



Skimmilk 

 Bottle. 



Report. 



At the bottom of the page explain — 



1. Why is a different bottle used for whole milk than skimmilk? 



2. Why is a little more acid used than in the whole milk test? 



3. How many pounds of fat in 1700 pounds of skimmilk with the above 

 test? In 2500 pounds of whey with the above test? 



4. Give length of time for both tests. 



