118 Testing Milk and Its Products. 



9. How many pounds of fat have been removed from 100 

 pounds of a sample of milk testing 2.6%, and what per cent, of 

 the fat was removed? 



10. If a sample of milk contains 7.0% solids not fat, what 

 per cent, water was added and how much extraneous water did 

 the sample contain? 



11. What has probably been done to each of the following 

 samples of milk, that were found to contain (a) 7.2 per cent. 

 BoUds not fat, 2.6 per cent, fat; (b) 9.0 per cent, solids not fat, 

 2.5 per cent, fat; (c) 6.5 per cent, solids not fat, 2.4% fat? 



12. What is the per cent, solids not fat and what is the con- 

 dition of each of the following samples of milk: 



Lactometer Beading. per cent Fat. 



(a) 32.0 at 58° F. 4.0 



(b) 33.5 at 56° F. 2.5 



(c) 30.0 at 63° F. 3.5 



(d) 28.0 at 54° F. 2.5 



(e) 27.4 at 69° F. 2.4 



