86 MARKET DAIRYING 
easily handled than in the liquid form. Each tablet con- 
tains enough alkali to neutralize .034 gram of lactic acid. 
Apparatus Used for the Test. This is shown in 
Fig. 33 and consists of a porcelain cup, one 17.6 c.c. 
pipette, and a 100 c.c. rubber-stoppered graduated glass 
cylinder. 
PIPETTE ees 
Fig. 33 —Farrington acid test apparatus. 
Making the Solution. The solution is made in the 
graduated cylinder by dissolving 5 tablets in enough 
water to make 97 c.c. solution.” When the tablets are dis- 
solved, which takes from six to twelve hours, the solution 
should be well shaken and is then ready for use. The 
solution of the tablets may be hastened by placing the 
graduate in a reclining position as shown in the cut. 
Making the Test. With the pipette add 17.6 c.c. of 
cream to the cup, then with the same pipette add an equal 
amount of water. Now slowly add of the tablet solution, 
