Cream Testing. 



79 



Cream-test bottles. Special forms of bottles have 

 been devised for testing samples of cream by the Bab- 

 cock test by Winton, Bartlett, and by various manu- 

 facturers. 



89. The Winton cream bottle. The cream-test bottle 

 devised by "Winton, 1 (fig. 32), has a neck of the usual 

 length, and of sufficient width to measure 

 30 or 50 per cent, of fat. The scale of 

 the neck is divided into parts represent- 

 ing one-half of one per cent, 

 each, but readings of a quarter 

 of a per cent, can easily be esti- 

 mated. Such readings of 

 cream tests are sufficiently ex- 

 act for most commercial pur- 

 poses. This form of cream bot- 

 tle will be found very conven- 

 ient in making tests of com- 

 posite samples of cream. 



Cream test bottles of a small 

 bore are greatly to be preferred 

 to those with wide necks (fig. 

 33), since they permit of accu- 

 rate readings to a quarter of a per cent. 



Other forms of cream-test bottles which 

 allow the testing of 50 or 55 per cent, cream 

 have been placed on the market during late 

 FIG 32a ^ ears ^ v some manufacturers. These bot- 

 Tne 50% ties (so-called 9-inch bottles) have long necks 



9-inch cream . 



test bottle, and require especially constructed, large and 



PIG. 32. 

 The 30% 

 cream test 

 bottle. 



Connecticut experiment station (New Haven), bull. 117; report 

 1894, p. 224. 



