382 



THE CHEMICAL CONTROL OF THE DAIRY. 



Example d. The analytical figures were : 



Specific gravity, 

 Total solids, 

 Fat, . 

 Ash, . 

 Solids not fat. 



1-0291 



12-78 percent 

 4-36 

 0-73 



8-42 



Genuine authenticated samples from the same source had been 

 found to contain as little as 8-28 per cent, of solids not fat. It 

 was, therefore, concluded that this sample was genuine, but 

 abnormally poor in solids not fat. 



Example e. The analytical figures were : 



Specific gravity, 

 Total solids, 

 Fat, . 

 Milk-sugar, 

 Casein, "I 

 Albumin, / 

 Ash, . 

 Solids not fat, 



1 -0292 



11-57 per cent. 

 3-51 

 3-41 



3-84 



0-81 



8-06 



It was concluded from the abnormally low proportion of milk- 

 sugar, and high amount of casein and ash, that this sample was 

 genuine, though of abnormal character. 



Example f. In this case the composition of the original milk 

 was known. 



The analytical figures were : 



Specific gravity, 

 Total solids, 

 Fat, . 

 Solids not fat, 



Sample Submitted, 

 1-0311 



12-03 per cent. 

 3-45 



8-58 



Original Milk, 

 1 -0325 



12-46 per cent. 

 3 -55 

 8-91 



The sample contained 3 per cent, of added water. 

 Example g. The analytical figures were : 



Specific gravity, 

 Total solids, 

 Fat, . 

 Solids not fat, 



1 -0287 



16-75 per cent. 

 8-10 

 8-65 



The low specific gravity was due to an excess of cream ; this 

 is shown by the high percentage of fat, and the comparatively 

 high amount of solids not fat. 



Example h. The analytical figures were : 



Specific gravity, 

 Total solids, 

 Fat, . 

 Ash, . 

 Solids not fat, 



. 1 -0245 



16-11 per cent. 



8-21 



0-65 



7-90 



